Play pretense

We're nt gg to pretend we understand what you're doing, but you better pretend that we do and not do anything funny.

short&sweet.

Go run.

learn

Dont be a douchebag.

Breadwinning

A man has to work. dont be a bum.

Repairman

Can you fix the bloody computer ?

Wicked

Of course. If you are driving a BMW, i would put chewing gum on it too.

Acting wise

All women are the same. Emotional, irrational, and 'periodic'. Don't be like a woman. Hence the expression : Be a man.