GMLO Share definition Flag Gettin' my laugh on. Much classier version of LOL So we see Brent walk out of the bathroom, but he's so tanked that he can't smell himself, and his pants are still around his ankles! Oh man, I was GMLO. GMLO by Cap'n Awesome May 2, 2005 0 0 Get merch Get the GMLO mug. Buy Now — $32.95 See more merch