Top Definition
An expression used by a bro when a female is not aware of something that a fellow bro has done, usually something awesome. As of lately, this expression is used more to communicate from bro to bro when an explanation would lessen the awesomeness of the situation. This can range from dominating someone in a video game all the way to being smooth with the ladies.
Example #1:
Tom: How did you kill me right after I killed you?!
Jeff: Ho Don't Know Bout My tactical insertion!

Example #2:
Tom: How did you get Emma to go to prom with you?!
Jeff: Ho Don't Know Bout My smoothness!!
by Hugh J. Bootie May 19, 2011

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