S.I.P 

Stands for Slut in progress.

Can be used in multiple different ways.

When someone’s doing something slutty.

Person 1: Did you see Becky go with Liam?
Person 2: Yeah we know that’s a S.I.P.

S.I.P by Jlackey11 June 11, 2018

S.I.P 

sleep in paradise

“ my friend passed away yesterday ”
“S.I.P”

S.I.P by blackmoney0718 March 10, 2023

S.I.P 

sleep in paradise

used to show condolences to someone after a loved one has passed

often used in texting

similar to R.I.P (rest in peace)

“my sister passed away today”
“S.I.P”

S.I.P by blackmoney0718 March 10, 2023

s.i.p. 

s.i.p.

means

Smile In Peace

It's the short illuminated art version
of saying R.I.P. (_Rest In Peace_)

MisterFnord: Robert Anton Wilson died this week !

MisterChris: r.i.p.

MisterLord: s.i.p.

s.i.p. by Emanuel Liberto January 20, 2007

s.i.p. 

It means SLEEP In Peace when used in replace of RIP.

S.I.P. Michael Jackson, gone but not forgotten.

s.i.p. by NycQueen March 12, 2017

S.I.P.A.A.S. 

Scientifically

Illiterate

People

Arguing

Against
Science

I had to walk away from my coworker because he was a complete S.I.P.A.A.S.

S.I.P.A.A.S. by MasterNostradumbass June 2, 2021

T.S.I.P. 

This Shit Is Phenomenal

While watching him get married all his friends could think was T.S.I.P.

T.S.I.P. by Discgolfer98 August 5, 2018