Occurring once, independent of any pattern; one-time. / Singular; unique; special; remarkable.

(idiomatic) Something that is done, created, etc. only once, and often quickly, simply, or improvisationally. / Something unique and remarkable.

plural of one-off

(baseball, dated, slang, 1800s) To throw a curve ball.

simple past tense of break one off

Third-person singular simple present indicative form of break one off

present participle of break one off

past participle of break one off

(idiomatic, slang, vulgar) To defecate.

(slang) An act of masturbation.