A made up word used to confuse people. Can be used to replace words that you have forgotten. A common meaning for durgular is to just say durgular as a definition to piss off people.
Johnny: RU RDY 4 SUM DURGULAR?
Bob: Hell yeah I'm ready for some durgular!
Tim: Dude wtf is durgular?
Johnny: You know, its durgular.
Tim: Fuck you asshole.
Johnny: Don't make me slap the durgular out of you Tim!
A gay ass bitch who's very ugly but good at math so all the Mexican kids at school are friends with him just so he will do their homework for them. Also he's very good at talking shit about people's mom.