Blagando
There is no definition, but people don't know that, so you can annoy them by trying to make them guess the definiton.
Steve: Your a blagando
Bob: what's that?
Steve: It's what you are.
Bob: no seriously.
Steve: I cant tell blagandos what they are.
Bob: ?!?!?!?!?!!?!?!?!?!?!?!?!?!
Bob: what's that?
Steve: It's what you are.
Bob: no seriously.
Steve: I cant tell blagandos what they are.
Bob: ?!?!?!?!?!!?!?!?!?!?!?!?!?!