suck-in

(verb) take up as if with a sponge. Synonyms: take in, sop up, suck in, take up.

(verb) attract by using an inexorable force, inducement, etc.. Synonyms: suck, suck in. Example: "The current boom in the economy sucked many workers in from abroad."

(verb) draw in as if by suction. Synonyms: suck in, draw in. Example: "Suck in your cheeks and stomach."