open a can of whoop ass

Start severe beating

To open a can of whoop ass is to unleash violent or aggressive action on someone—to beat them up or defeat them soundly.

The image is of ass-kicking stored under pressure, ready to be released: Keep talking and I'll open a can of whoop ass on you.

The phrase is humorous and hyperbolic, more often threatened than executed.

Sometimes shortened to whoop ass alone: Time to bring the whoop ass.

Related

smackdown · go ham · aggressive · confrontation · talk smack · take it outside · lay down the law · fight · showdown · no holds barred · action · kick butt · assault · attack · punishment · escalate · vengeance · retribution

Opposites
aggression/confrontation

open a can of whoop assmake peace

Resolve conflict between parties

turn the other cheek · peaceful resolution · bury the hatchet · back down · kiss and make up

power dynamics

open a can of whoop asstake a beating

surrender · submit · cry uncle · beg for mercy · grovel

action vs. inaction

open a can of whoop assback down

Withdraw from a stance

walk away · retreat · stand down · turn tail · chicken out

Family

opens, opened, opening, opener, openers, openness, openly, reopen, reopened

Familiarity
Top 200,000
Profile
Mostly American · Timeless · Negative · Everyday, not technical · Rated PG-13