Thumbs up is a raised thumb meaning good or agreed. Give it the thumbs up.
The gesture is offensive in parts of the Middle East and West Africa, which travellers should know. The Roman story everybody tells about it is almost certainly wrong.
1phrasethumbs upA raised thumb meaning good or agreed.
“He gave the whole plan the thumbs up without reading it.”
thumbs up is a gesture.
Said to come from Roman amphitheatres, though the direction and meaning of the Roman gesture are disputed.
Said to refer to the signal of approval or disapproval used by spectators at a Roman amphitheatre, but the directions have been reversed, and the Roman gesture was a bent thumb.
Etymology from Wiktionary, CC BY-SA
Practised in Body Language & Gestures