It's means can you not/stop
Hey Jessica can snot right now
Often used when ur pissed at someone
snot is a slang term or abbreviation form of 'is not'.
Jimmy: Wanna hear a joke bro?
Lenny: Fosho. Go on.
Jimmy: What does a Janitor say when they jump on you from inside a closet?
Lenny: What?
Jimmy: Supplies, mf!
Lenny: snot funny.
S.I.D.E.N.I.G.G.A.O.V.E.R.T.H.E.R.E
Fam go head and talk to her, I'm just her favorite snot 😏😏
(verb) when snot unexpectedly flies out of your nose
your joke was so funny i snotted.