Trust Barrel: Gamer slang. A sometimes explosive barrel used in online multi-player games to express trust or prank the gullible. Used mostly in Garry's Mod games.
#1: "I've got a trust barrel! Come and touch it."
"Well I don't trust you not to detonate it so keep that away from me!"
"Touch it!"
KABOOM!!! (Explosive trust barrel.)
"I died! Who shot the trust barrel?!"
#2: "Hey newb come here I'm gonna show you how a trust barrel works."
(Pushes newb off a cliff/bridge with trust barrel.)
#3: "Hey newb come here I'm gonna show you how a trust barrel works. Hold this trust barrel."
(Backs away and shots the explosive barrel.)
KABOOM!!!
"And that's how a trust barrel works."