Top definition
To forget about someone or something, to let go, to get over it, to move on.
As in Mariah Carey's song:

"I gotta shake it off
Cause the loving ain’t the same
And you keep on playing games
Like you know I’m here to stay
I gotta shake it off
Just like the Calgon commercial
I really gotta get up outta here
And go somewhere
I gotta shake it off
Gotta make that move
Find somebody who
Appreciates all the love I give
Boy I gotta shake you off
Gotta do what’s best for me
Baby and that means I gotta
Shake it off"
by StefB86 May 18, 2006
Get a shake it off mug for your papa James.
Sep 9 Word of the Day
the thing that you don’t have when you’re phones percentage is over 20
phone: why don’t you go to sleep tommy it’s 2 in the morning?
tommy:why don’t you die you dumbazz
by lik_frls_dis.me February 12, 2020
Get a sleep mug for your sister Sarah.
3
After a male urinates, he doesn't wipe like a female would. Instead he holds onto his genitalia and "shakes" it, so as to dry off.
He had to (shake it off) so he could put it in his pants.

*glancing around stupidly at your friends, miming the shaking off* "(SHAKE IT OFF)".

~(shake it off) can also be used as a dumb immature joke, as seen in example number 2~
by -S July 08, 2005
Get a shake it off mug for your mom Nathalie.