YSM 

You're Shitting Me

Elvis is dead? YSM !

YSM by Cliffjrs August 16, 2010

YSM 

YSM is the Term used by (Young Savage Movement) members typically formed by Vice Lord gang members YSM is a name to be scared of

Guy talking shit-Them YSM niggas are pussy fr

YSM Member passing by-Yo I heard you was talking shit so wassup

Also Guy who was talking shit-Nah bro it wasn’t me I swear I fwy

YSM Member-you pussy

YSM by Oldguy67 January 8, 2021

YSM 

Acronym for "you sicken me". Used mostly in online chat.

John: I got with Jane last night.
Chad: Who, the fat bitch from that club?
John: Yeah.
Chad: YSM!!!!

YSM by MrKapper November 28, 2005

YSM 

A lifestyle.

Yee Slap Mob
You Suck Me
Young Sly Mothafuckas
Your SMoking Mama
Young small muthafuckas
young sly masturbators
yeah, smoking marijuana
young steamy men
You sicken me
Young, sexy, and miraculous

Sum hoe: Yo YSM, can I have your autograph?
YSM: No, but You can Suck Mine...hoe

YSM by Djizzle77392 April 25, 2010

ysm 

Abbreviation for "You Stupid Moron"

Shut the hell up, YSM.

ysm by NecroSen September 1, 2008

YSMF

You Stupid Mother Fucker

You cannot change the price of the guitar AFTER you have already come to an agreement, YSMF!

YSMF by McLiverdamage November 8, 2015

ysmyisym 

Acronym for - You Show Me Yours, I'll Show You Mine - often used when flirting with a person you find attractive or among exhibitionists.

Not for the faint of heart.

ysmyisym - If you show me yours, I'll show you mine.

ysmyisym by tyrant69 January 10, 2012