1 definition by owl410
A St Margaret's Girl. Can be recognised by vibrant yellow bands on her blazer. She may carry a piece of paper which reads 'In need of a dance date', as SMEGs are very unsociable beings and do not come into contact with the opposite sex on a regular basis. Usually, their Facebook friends list consists of all female friends and, sometimes, one male - their father.
Person 1 (Pointing at a girl) - "I didn't see her at the party last night."
Person 2 - "...She must be a SMEG."
Person 2 - "...She must be a SMEG."
by owl410 October 4, 2011