lameoid adjective 1noun 1forms 3 adjective1 •(slang) Lame, uncool, stupid.I’ve been dragged along to some lameoid films in my time, but this chick flick really takes the biscuit. — 2010 noun1 •(slang) A person who is uncool or stupid; a loser.It’s just...it’s incorrect, Dad, you sound like a lameoid! — 2011 formslameoids · more lameoid · most lameoid