No doubt this has been asked before but being a guest I don’t have access to the search programme.
I’ll lead off then…
Muff Diving
Pearl diving
Snarling in the busby…UK only I suspect
Myrtle snutching…ditto…
Rug munching
Eating shredded wheat with salt on it
Eating a Y sandwich
…carry on 
Barking at the ape
Bikini burger
Bird-washing
Bite the dog-end
Blow some tunes
Boating
Box lunch
Box lunch at the Y
Brush one’s teeth
Bush dinner
Canyon yodeling
Carpet munching
Chew the she-fat
Chow box
Chow down on Georgia O’Keefe’s inspiration
Clam dive
Clam diving
Clam lapping
Connie Lingus
Cunning linguistics
Dine at the Y
Dinner beneath the bridge
Dip the brush
Dive in the bushes
Dive a muff
Dive in the canyon
Do it the French way
Don the beard
Donning the beard
Doormat bashing
Drinking at the fuzzy cup
Drinking from the furry cup
Eat fur pie
Eat hair pie
Eat muff pie
Eat a tuna sandwich
Eat a tuna taco
Eat seafood
Eat squirrel
Eating a kipper pie
Egg McMuff
Face job
Face the nation
Fall in love
Fanny noshing
Feathery flick
Fifty-nine
Fish dinner
French culture
French job
French kiss Mr. Lincoln
French lessons
Fur burger
Fur pie
Fuzz sandwich
Fuzzburger
Give a length of tongue
Give face
Go boating
Go for sushi
Go down and do tricks
Go south
Go under the house
Go way down South in Dixie
Gorilla burger
Gorilla in the washing machine
Growl at the badger
Growl at the biter
Growlbite
Hairburger
Hat job
Have a box lunch
Have a mustache
Have a tuna sandwich
Have box lunch
Husband’s supper
Kiss somebody’s down
Kneel at the altar
Labial titillation
Lapping at the lint trap
Larking
Lay the lip
Lick the slit
Lickety-split
Licking anchovy
Lingual stimulation
Lingual titillation
Lip reading
Lip service
Lip syncing to the fish-fueled jukebox
Lip work
Make mouth music
Medicate the hairy paper cut
Moustache ride
Mouthlove
Muff diving
Muff munching
Mumbling in the moss
Munch the bearded clam
Ocean pinking
One-man band
Parting the fuzz
Pearl diving
Picnic on it
Playing in the sandbox
Pug noshing
Punch in the mouth
Red wings
Sack lunch
Seafood dinner
Shrimping
Sip at the fuzzy cup
Smoking the fur
Sneeze in the basket
Sneeze in the cabbage
Sneeze in the canyon
Speak Low genitalese
Speak in tongues
Swing low
Talking to the canoe driver
Talking to the boat people
Telephone the stomach
Tip the velvet
Tongue bath
Tongue wash
Trimming the hedges
Tuna taco
Velvet buzz saw
Wearing the beard
Whistle in the dark
Whistling in the weeds
Worship at the altar
Yodeling in the gully
Yodeling in the canyon of love
Yodeling up the valley
…
Did I just kill the thread? 
How do I lick thee?
Let me count the ways…
Gee thanks Clockwork, you sure know how to make a guy feel inadequate
Obviously you’ve made a study of the fine art 
I think you missed
quimle v. to eat hairy pie (qv). I was quimling her, he quimled me, etc.
red wings The honour bestowed upon someone who consumes a haddock pastie during rag week. 
There may be some more here. Personally, this makes a jibbering wreck out of me.
sweet lord Clockwork.
Isn’t his tongue tired yet…? :eek: 
Cunnilingus linguistics is not really my area of expertise. However, Licking pussy has not yet been mentioned.
Regardless of what it’s called, cunnilingus is IMO best performed by placing the clit between the lips (the oral ones) and vibrating the lips.
Cunnilinguistics! New word (and possible band name)!