The act of having a horribly drunk night. refers to the subway sandwhich meatball marinara which tends to be messy and falls all over the place the further you get along it.
"how was last night?" " i dont remember but i can tell you it was a foot long meatballmessybish"
Popularized by rapper Kendrick Lamar, the word has many different connotations and is used often by people in Compton. Typically the word is affirmative and can be read like "my nigga" or "you feel me" depending on the context. Phrase also purposefully sounds like "you bitch" and this can be part of a double meaning.
a spam word used to irritate people who everyone hates cuz he's too self-obsessed and annoying. He stinks at doing practically everything except showing off.