Nathan T's definitions
When a girl has a wallet, phone, pack of cigarettes, etc. in the back pocket of her tight-fitting jeans, thus causing an odd protrusion from her butt.
Jamie: Man, if that girl is gonna wear such tight jeans she better upgrade to a smaller phone!
Christina: Yeah, shes got some seriousss lump ass!
Christina: Yeah, shes got some seriousss lump ass!
by Nathan T April 1, 2008
 Get the lump assmug.
Get the lump assmug. Translates to "are you dee one too see four dee bee jay".  If that isn't obvious enough, I'm very sorry for you.
<randomChatGuy> rud12c4dbj
<randomOtherChatGuy> lol
<randomOtherChatGuy> lol
by Nathan T December 26, 2008
 Get the rud12c4dbjmug.
Get the rud12c4dbjmug.