1. One who follows the guidelines, rules, and regulations of Mattitude; a Mattitude Follower.

2. A word used to censor yourself while trying to say "motherfucker".
1. Shannon Moore is an MF'er

2. I'm gonna kill that MF'er Johnny!
by Ryder October 09, 2003
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When a mother fucker isn't worth the time it takes to type that many ALL this.
That mfer ain't shit he go back to his baby MoMA before he try to get with ALLthis
by JustnTime December 30, 2019
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Short for peace out mother fucker. Used in texting or iming.
-Aight later hommie
-PO MFer
by Cweezy December 12, 2007
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Someone who looks sticky, acts strange, or does something to make you mad, you can call them a cummy mfer
Yooo, did you see him, he’s a cummy mfer.
by bdbdjdjjdiske June 08, 2021
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