Mitt and Ann Romney in Youngstown Monday. See more Ann Romney photos. (Gerald Herbert/AP)

“My sweetheart.”

“My girlfriend.”

“My steady.”

These are the among the ways Mitt Romney has affectionately referred to his wife on the campaign trail. But our colleague Philip Rucker reports the candidate tried out a different term of endearment as he brought out Ann Romney for a town hall meeting at a Youngstown, Ohio, factory on Monday:

“I’ll introduce to you the heavyweight champion of my life.”

Okay! Just what every lady wants to hear, huh? The GOP frontrunner did a little backtracking: “I didn’t mean weight,” he said, laughing. “That didn’t come out right. She’s just a great fighter is what I mean. And I say that because anyone who can raise five boys and keep them on the straight and narrow, that’s a champion.”

Yeah, yeah. Make it up to her later, okay? Ann Romney gamely played along when she took the microphone: “If this goes on much longer, I will be the heavyweight champion. Things are getting a little tight. . . We’ve been on this [campaign trail] for a long time now, and you don’t always get to eat like you like or exercise like you like or always get the sleep you need.”

Read earlier: Ann Romney on campaign trail, helping her husband ‘get through this together’, 10/2/11

Mitt Romney and Ann Romney: Their BYU years, 2/18/12