1.) (n.) A relationship consisting solely of oral sex (fellatio), often one which will end soon because of this aspect.
2.) (n.) A brief instance of recieving oral sex
1.) Yeah i think I'm gonna dump the bitch; i want to have sex but all she ever wants is a fellationship.
2.)Yeah i met her in a bar, one thing led to another, and we ended up in a fellationship; no strings attached.