\`whoop 'ass\ n.
A dangerous substance, usually found packaged inside cans. When released, can cause major damage to the person it is intended for, and is often used as a weapon of
destruction. More often the
user warns the recipiant of an imminent opening of a can, if the recipient does not
act as desired by the opener.
"If you don't
shut up i'm
gonna open up a can of whoop ass!"
"If you go ahead with that plan, you'
re gonna see me open up a can of whoop ass on you!"