Rem
Short for remedial, and therefore a common insult. Even the teachers used this one.

Extra mileage could be garnered by grasping the handles of an invisible motorbike and starting it up, as though on a cold day. "Remmm. Remmememem. REMemememEMEMEMEM (twist throttle) REEEEMMMM! Reeeeeeemmm, reeeeeemmmm, rerrrrmmmmm." And so on. This was not insulting the mentally ill, it was merely making motorbike noises near them. Even God would find it hard to spot the hidden sneer.
written by RL*M, Su*an*Tobac*o, approved by Susan

I'm glad this exists as I now know what my boss means when he uses the phrase 'Rembo'
written by Da* B, approved by Susan