suck in Polish

(vulgar) An act of fellatio.

(transitive) To use the mouth and lips to pull in (a liquid, especially milk from the breast). [from 9th c.]

(transitive, slang, vulgar) To perform fellatio. [from 20th c.]

(transitive, slang, vulgar) To perform fellatio. [from 20th c.]

(chiefly, North American, intransitive, stative, colloquial, sometimes, vulgar) To be inferior or objectionable: a general term of disparagement, sometimes used with at to indicate a particular area of deficiency. [from 20th c.]