Top Definition
SYBAM pronounced: sigh' bam

(v) Shut your bitch ass mouth. Usually used with a ghetto accent when not in acronymn form.

(n) A person who needs to shut his/her bitch as mouth; one who talks too much about nothing anyone cares about.

(v) Dude, you need to sybam like no other.

(n) I had my first day of class, and I had to sit next to some sybam who wouldn't stop asking dumbass questions. I wanted to shoot myself.

(adj) She is so sybammy! She's just rambles on about nothing!
by J Jenkins August 28, 2006

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