Top definition
I just hit a YAMM with my 5,000th post.
by Dave Bogart September 02, 2003
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2
A girl who loves working with children but also enjoys being childish.

Often secretive about love interests
Becky is being such a yamm, doesn’t know when to grow up. That’s why she’s single.
by TrishaLady88 February 03, 2021
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