two thumbs up

Etymology
American film critics Roger Ebert and Gene Siskel co-hosted a movie review program, At the Movies. The two had different tastes, and often verbally sparred and traded humorous barbs. When both critics gave the film a thumbs up, it was assumed that the film was very good.

Noun

 * 1)  Strong approval.
 * 2)  A hand gesture indicating strong approval.
 *  When shown the blueprint for the new building, I gave my two thumbs up to show my approval
 *  When shown the blueprint for the new building, I gave my two thumbs up to show my approval
 *  When shown the blueprint for the new building, I gave my two thumbs up to show my approval