One who stabs and is known for stabbing, most likely a thugsta or gangsta or killa manilla, thus the word has an "a" at the end of it rather than the normal, non-slang suffix "er".
"Man, dat dey mudda fuckoi is now knownst as a mutha fuckin' stabba since he went and stapped dat fucka in his itty bitty chess"
by E April 1, 2005
the noise moms making whilest stabbing their daughters in the tummy after they tell them they want to go on birth control
daughter: "mom, i think i need to go on birth control"
mother: "you're having sex?! you whore!" *stabba, stabba, stabba*
mother: "you're having sex?! you whore!" *stabba, stabba, stabba*
by pleasuretomeetyoucaramel March 28, 2010
by Jack!! July 28, 2006
by Dan and Zach July 13, 2006