Goofy ass Mf

1) someone who is looking hella stupid tries to roast you or someone else.

2) someone who says some stupid ass thing.
3) someone who does some stupid ass thing.

Ex:1
Man, Devon really be acting like a Goofy ass Mf. He's been saying some stupid ass things.

Ex:2
Alex: ay yo I hear Devon has been acting like a goofy ass Mf recently.
Jacob: yeah no he has been trying to roast us, yet he looks like Maui and acts all goofy.