It means "De Puta Madre" and it comes from the spanish. It's what someone says when he agrees on something or he likes it.
Bill: Yo we are gonna get Tacos today.
Jorge: De Puta Madre!(dpm)
Sarah: I just bought the new Adidas Shoes.
Lucy: dpm!
Serves as an acronym to the phrase "Definately Probabally Maybe" as well as its abbreviated form (DefsProllsMaybs). Usually said in jest or to avoid answering a question definitively, as each letter represents a gradually less assuring response.
"So Hedo, you coming to the beach with us or what?"-JJ
"DPM"-Hedo
"lol well we will need to know soon because Rashard is geekin."
Disruptive Patterned Material
DPM : british three colour camouflage pattern. Britain's camouflage is 100x superior to anyone else's.
Yank ranger 1:WOW dude check out those brits man their camo rocks the world!
Yank ranger 2: Yeah man i wish i was british cos' then i'd be cool.
Distributed pattern matirial, so technicly any sort of printed fabric, but its really used to discribe camoflage.
some of you may think it stands for damp proof membrane, which it sort of does, but also dosent.
Dude 1: Dude, did you forget your combat jacket?
Dude 2: yeah, im just gonna stand behind you and hope he dosent notice that im only wearing an anorack in DPM.