A 3 letter acronym use in texts or on various personal ads referring to one male, who's receiving oral sex, is also holding and playing with another male's cock and genitalia thereby jacking him off (results in greater sexual pleasure to both partners or individuals).
Ad under m4m, t4m, mw4m or mw4mw can read in part: Love to give oral sex
with my warm, wet lips, HMU accepted but not required.
Red: "Hey Bob, did you hear, Jim got a blowjob
from Sally's husband and was told to HMU during."
Bob: "You're kidding Red, did he do it?"
Red: "From what I heard he did, got so turned on, ended up jacking him off