The acronym DAMF actually has a variety of meanings, and since I cannot think of any examples, I will just list them in that section.
Person A: DAMF obviously stands for Dumb-Ass Mother-Fucker.
Person B: No, it stands for Dope-Ass Mother-Fucker!
Person C: What about Dead-Ass Mother-Fucker?
Persons A & B: Yeah, what about Dead-Ass Mother-Fucker? D'you wanna be one?
Him: This Walmart shirt costs like $300
Other him: shut up you DAMF