Not a big fan of paedo chants, but you've got to admire their efficacy - in a derby against hearts, not long after the Craig Thomson story broke, the entire East stand started chanting the 'cheeky smile' song. Thomson was subsequently switched to the other side of the pitch after becoming visibly irked.
Aside from that, the 'What's it like to shag a h*n, Artur, Artur' chant was pretty reasonable craic