to fart [vulg.]
furzen [vulg.]
pupsen [ugs.]

to fart [coll.]
pupen [ugs.]

to fart [coll.] [coarse]
einen fahren lassen [ugs.]

to fart [vulg.] [to fart silently]
föhnen [ugs.] [schweiz.]

fart [vulg.]
Furz {m} [vulg.]
Pups {m} [ugs.]
Pupser {m} [ugs.]
Schas {m} [österr.] [vulg.] [Furz]