swell upviintransitive verb: Verb not taking a direct object--for example, "She jokes." "He has arrived."
My hands swelled up after I took the medication.
swell upvi phrasalphrasal verb, intransitive: Verb with adverb(s) or preposition(s), having special meaning and not taking direct object--for example, "make up" [=reconcile]: "After they fought, they made up."
figurative, informal (be very proud)
nadymać się zwr. ndk.
nadąć się zwr. dk.
Just look at him swell up when somebody asks him about his girlfriend.