Abs that are only visible in the morning after hours of fasting.
Girlfriend: Brandon your abs are looking good today!
Brandon: I haven't eaten anything yet those are mabs. They'll disappear by lunch.
Pronounced “mah-b”. Short for “My bad”.
If you feel bad about something, you say “I apologize for my mistakes.” If you think it’s humorous how they expect you to feel bad about something, you say “WHOOPS mab”.