https://yourmom.com's definitions

hMmf

When you don’t get your way, someone {disses} you or someone disagrees with you and you’re mad about it. You say “hMmf”.

chad:“You’re ugly”
Sarah:“hMmf”

by https://yourmom.com March 5, 2020

hMmf

When you’re mad at someone and have no comeback so you say “hMmf”. It can also be used when you’re angry or disagree with someone.

mason: “i’m not going to your game”
peyton: “hmMf”

by https://yourmom.com March 6, 2020