3 definition by Iain Cooper

A set up, a trick. If someone stitches you up, then they're playing you for a fool. It's often used when framing someone for a crime.

Some's schtick is their patter, their sales pitch, their routine. It can also simply be something that person is interested him.

Affirmative. Originally used over the radio to signify that you heard the other - you guessed it - 'loud and clear', the term now simply means "Yes, I understand you, now kindly leave me alone."