strap on a pair

Strap on a pair

such as a pair of testicles. (bravery?)

if you have a pair strapped on, people might call you arrogant
hey, you might even be arrogant for strapping them on in the first place :)

act like a man

find some courage

Mike : You know, I'm just gonna take off and break up with her over the phone.
Phoebe : You can't do that. Oh, come on, Mike, strap on a pair.