What is "slip in"

vb. 1 (context transitive English) To include (e.g. a certain word or phrase) into a sentence discreetly 2 (context transitive English) To enter discreetly 3 (context soccer transitive English) To play a subtle pass into someone in a goalscoring position.

v. insert casually; "She slipped in a reference to her own work" [syn: stick in, sneak in, insert]