tubu
To call someone tubu is to call them extremely annoying.
Shut up you tubu child!
tubus
A very strong insult derived from "two butts" that has the power to completely baffle anyone to whom it is called. Be careful when using it, because the effects can bring utter devestation; it is only meant for a true enemy.
I can not belive you slept with my boyfirend, you tubus!