When someone will kick someones ass.
Neil: Greg why are you so fat,
Greg: Want me to open up a can of woop ass on you???
by Killku November 23, 2006
Get the Can of woop ass mug.
One of the most over used and lamest of all sayings. Bears little meaning anymore. In the same outdated category as terms "dont go there" and "talk to the hand"
Jimmy:"You better watch it or I'll open up a can of Whoop ass".

Billy:"You better watch out that the year 1992 has discovered you have ventured into the future."
by d November 29, 2003
Get the Can of Whoop Ass mug.
A US Air Force cargo plane fully loaded with combat equipped US Army Paratroopers - Some of the nations most unequivocally certified bad ass motherfuckers - on their way to a real world, or simulated airborne insertion.

When those Paratroop Doors open over what ever third world shit-pile they've been dispensed to, and that jump caution light turns green all manners of whoop-ass will assuredly commence on the ground below.

see LGOPS
You see that C17 Globemaster out there on the tarmac son? That Aircraft can hold 102 combat equipped paratroopers. When the President picks up the red phone and dials, they can have that can of whoop ass in the air smokin, headed anywhere in the World in 18 hours or less.
by ABN_PMPN505 June 21, 2011
Get the can of whoop ass mug.
An actual energy drink, according to a recent issue of National Geographic.
See this? (shoves can in listener's face) I'm about to open up a can of Whoop Ass.
by Misterdoe February 8, 2005
Get the can of whoop ass mug.
This is a phrase one would use to proclaim that someone's posterior can produce one of 3 things, A. a loud and boisterous fart, B. a long winded and detailed fart, or C. a fart that produces a particularly foul odor when leaving someone's shitter. Almost always used after someone farts, and it is not courteous to proclaim that someone's ass, can indeed, fart, outside of a scenario in which said person previously farted in the last 15 seconds. You may also add 'though' to the end of the phrase if it suits your fancy.
*Someone in close vicinity starts ripping some serious ass.* "That ass can fart!" or "That ass can fart though!"
by JohnBallSack November 22, 2021
Get the That Ass Can Fart mug.
What every mercenary in Far Cry shouts when he can't shoot at you.
I'm gonna open a can of whoop ass on u!!
by bobsters April 7, 2004
Get the can of whoop ass mug.
the term has been popularised, among other things, by one of the mightiest and most well-known gaming clans that participate in the famous FPS on-lnine game Far Cry: {TAF} (The Animal Farm).
As everyone in the Far Cry community knows, "For those times a can of whoop ass just isn't big enough: {TAF} In A Can!"
by tafdingo May 2, 2006
Get the Can of Whoop Ass mug.