Pejorative Make fun of / criticize an easy target, especially one that can't defend themselves.
Todd: My grandma is so boring. All she does is watch TV and walk her dog, it's like, get a hobby.
Steve: Why you gotta dunk on your grandma like that?
Primarily British Boldly face something difficult that you have been avoiding. Turn your front to the problem and blaze ahead.
Tom: How the hell am I going to tell my mum I crashed her car last night?
Dick: Front it out, mate. The longer you wait, the shittier it's going to get.
Tom: Just yank off the plaster?
Dick: Haaa, you said yank-off. And yeah.
