Someone who licks pussy like it's the only thing they want to do. A cunnilingerer will not move away the second the orgasm has subsided, but will slowly start working up to a second one like the legend that they are. It's not a duty to these guys, it's a delicious, slippery privilege and they make that only too clear.
Guys- if you're not one of these tongue genuises, then become one. The world would be a much nicer place if we abolished fellate hate
and made every guy a cunnilingerer.
"I had such a good time with that random other I took home on Friday. He was a cunnilingerer- I almost regret not getting his name and number"