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1.
When your mom acts like she doesn't care but is really pissed off.
Wow, your mom is being super chill about that party!

Oh, yeah, you'd think so but I have a suspicion that she's just being momchalant...
by RooskiJD December 01, 2009

Words related to momchalant

mom nomchalant nonchalant pissed pretending