an acronym used to text somebody when you're irritated with them. It does mean "at the fuckin moment"
Penelope: "HEY HEY HEY HEY!! PAPITOOOOO!"
Victor:" Penelope, stop texting me! I'm doing something ATFM! ugh"
Victor:" Penelope, stop texting me! I'm doing something ATFM! ugh"
by lilxan February 26, 2018

by Lilxan July 9, 2016
