gegg /ɡɛɡ/noun 1verb 1forms 3 noun1 •(Scotland, no longer used) A trick or hoax.Its meetings have long ceased, and it is only fair to hope that there be none of the young and gay spirits of Glasgow eager to revive so palpable a gegg as the one we have just recorded, […] — 1832 verb1 •(Scotland, no longer used) To trick or hoax. formsgegged · gegging · geggs