Short for Sexual Level. Usually referencing when a friend of the opposite sex tries to make your friendship sexual. Typed in texts usually.
Girl 1: “Me and my bestie went out to Waffle House last night to eat, and then when we hugged, he tried to kiss me and grabbed my waist!”
Girl 2: “Wow, he tried to make it SL? Block him, ong!”
Girl 2: “Wow, he tried to make it SL? Block him, ong!”
by onetenth February 27, 2024
Get the SLmug. by By mi bek  December 3, 2022
Get the o sl Kdor bmug. SLS is "Smiling like Shit" SLS in emoji 😁 💩 in a text received from a chick from the DMV area.
Example:
M: swear I love you girl...
H: sls.
Example:
M: swear I love you girl...
H: sls.
by MazaratiSlim September 26, 2014
Get the SLSmug. A waste of time. You learn derivatives, but it is unnecessary unless you want to be an engineer. Don't take this course if you love your free time.
by sunnyka November 11, 2020
Get the IB SL Mathmug. 

