Top definition
a hostile directive to retreat; usually to feign an attempt to prevent an altercation.
Nigga, You had best to back the fuck up offa me fo I beat yo bitch-ass!
by spence-doggy-ddog February 01, 2006
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2
Threat suggesting that the enemy should leave or be quite. The enemy may take the advice (see punked) or disregard the advice (see toe to toe or fight).
"I've got a bat with your name on it. Best for you to back the fuck up."
by Beedub January 31, 2004
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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3
What we told Japan to do but they refused so we nuked the shit out of them
President Truman: Japan better back the fuck up
Japan leader: fuck no
President Truman: ok then, boys prepare the atomic bomb
by applealex December 01, 2009
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4
What you immediately do without thinking when you accidentally click on an ad.
Impatient Bob: I hate when I accidentally click on an ad and it takes me to the app store.

Unhappy Mickey: Me too, I back the fuck up.
by Smexy Horse August 23, 2016
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Golden Shower Plush

He's warmer than you think.

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