Is that funk normal?

I've started seeing this guy, and he's really nice and sweet and all that--no complaints there. But, on our last date, there was this odor ... and at first I thought it may have been bad breath, but when we got in the car after dinner--it hit me that it was serious BO. He hasn't smelled like that before, so I'm wondering: is it normal for guys to smelly funky at the end of the day, or not?
Is that funk normal?
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