go down on vs fellate

go down on and fellate both are verbs.

Word	Noun	Adjective	Verb	Adverb
go down on	No	No	Yes	No
fellate	No	No	Yes	No

As verbs, go down on and fellate are synonyms defined as:

go down on and fellate: provide sexual gratification through oral stimulation

Other synonyms of go down on include blow, suck.

go down on (verb)	fellate (verb)
provide sexual gratification through oral stimulation	provide sexual gratification through oral stimulation