(idiomatic) A minimal amount of money to live on; any money at all.

Alternative form of two can play that game

plural of Linnaeus's two-toed sloth

plural of rose between two thorns

(slang, vulgar) The sexual act of inserting two fingers in the vagina and one in the anus.

(comical) happy birthday to you

(ethics, idiomatic) It takes two or more people to cause a quarrel; one cannot blame an argument entirely on the other side.

Synonym of two's company, three's a crowd

(dated) Synonym of two's company, three's a crowd

Unable to fit into either of two conflicting categories, and as a result likely to fail.