sup m8 is used as a part of the internet lingo and means "suprise mate!". It's a common word used in games or chats, when you dont have time to write. sup m8 is often used similar to hi.
Jack: sup m8, got sum noice memes 4 u
Dan: Hi bro, send em 2 my discord profile, im in game right now.
Dan: Hi bro, send em 2 my discord profile, im in game right now.
by Jay2da_akob July 2, 2018
Get the sup m8mug. 
short for superscript.
as in, sup.
sup is often accompanied by a flicking of the head in a superscript direction. if you know the person and made an assessment about their current happening (no need to talk), you can flick in the subscript direction (a quick nod).
sup means nihao and nihaoma, ohio gozaimas and mushimushi. are you cool? are you high (positive)? are you chill? are you good? i.e. how are you (rhetorical).
as in, sup.
sup is often accompanied by a flicking of the head in a superscript direction. if you know the person and made an assessment about their current happening (no need to talk), you can flick in the subscript direction (a quick nod).
sup means nihao and nihaoma, ohio gozaimas and mushimushi. are you cool? are you high (positive)? are you chill? are you good? i.e. how are you (rhetorical).
sup?
by Jim Geo September 18, 2022
Get the supmug. 
