Kermit the Frog suffered a performance-ending injury yesterday during New York's annual Macy's Thanksgiving Day parade. The balloon likeness of the popular character crashed into a tree and sustained a four-foot hole. Workers dragged the deflating Kermit for four blocks, nearly hitting several spectators, before retiring him from the parade.

The fallen frog, however, did not keep an estimated 100,000 people from standing in rain and cold weather to cheer an assortment of wet floats and giant balloons, including Snoopy and Garfield, as well as "Miami Vice" star Philip-Michael Thomas, Miss America Susan Akin, Betty Thomas of "Hill Street Blues," Rosemary Clooney, the Flying Karamazov Brothers and jazz singer Cleo Laine. Boyfriend Charged in Thomas Case

The boyfriend of screen writer Diane Renee Thomas has been charged with two counts of felony manslaughter for gross negligence in a traffic accident that killed Thomas and an acquaintance.

Stephen Patrick Norman, 27, was charged Wednesday with vehicular manslaughter in the deaths of Thomas, 39, who wrote the script for the movie "Romancing the Stone," and Ian Young, 40, the Los Angeles District Attorney's Office said.

Norman was driving Thomas' Porsche about 80 miles per hour in a 40 mph zone on rain-slick Pacific Coast Highway Oct. 21 when he lost control of the car and slammed into a power pole south of Malibu, police said.

Norman, who also was charged with a misdemeanor count for driving with a suspended license, is expected to surrender for arraignment and faces a preliminary hearing sometime next year. Peggy Lee in Good Condition

Doctors treating singer Peggy Lee, who is recovering from heart bypass surgery, said she has undergone a final minor operation and should be able to resume her career soon.

Lee, 65, had been performing at the Fairmont Hotel in New Orleans when she was stricken. She was taken to Touro Infirmary and underwent the bypass operation Oct. 8, forcing her to cancel that night's scheduled performance at the White House.

A second procedure was performed two weeks later to control an infection. The third operation was performed Wednesday, doctors said. Lee was listed in good condition and should be able to go home in about 10 days, according to Dr. Tom Oelsner. Geldof Speaks Out on Aid Money

About $38 million of the more than $80 million raised by Live Aid and the Band Aid song "Do They Know It's Christmas?" has been spent on relieving famine in seven African nations, organizer Bob Geldof said Wednesday.

Geldof, speaking in New York, said about 70 percent of the Live Aid money is going toward long-term planning, 20 percent toward emergency supplies and 10 percent for logistics.

The Irish rock singer, who recently returned from his second trip to Africa, sought to dispel criticism from other relief organizations of the way the Live Aid and Band Aid money has been spent.

"We could spend all of the money tomorrow -- all of it -- and keep 30 million people alive for seven weeks. Then they would die," Geldof said. "We can keep people alive with food or we can build wells to give people a life."

Geldof, who accepted a $20,000 World Hunger Media Award Tuesday night at the United Nations, said he would stop making Band Aid-related appearances at the end of the year and resume work with his band, the Boomtown Rats.

Meanwhile, Columbia Records has uncharitably dropped the Boomtown Rats, whose last album, "In the Long Grass," sold fewer than 75,000 copies. End Notes

Sen. Lawton Chiles (D-Fla.) will undergo a coronary bypass operation to correct blocked arteries Monday morning at the Lakeland Regional Medical Center in Florida. "Approximately one week of hospitalization will follow the surgery, and full recuperation can be anticipated in a month," said Carolyn Fray, a press aide to Chiles . . .

Billy Carter quit his job this month as vice president of marketing for a housing manufacturer so he can go into the mobile-home business on his own. "Billy was tired of being 'normal,' " his wife, Sybil, said. "He is not a 'normal' person and could not sit in a suit and tie at a desk all day. He says he wants to put his jeans back on and get back to real work."