Lobster slap 

When you go to have sex but they've had crabs for more than 8 weeks

Bill: That prostitute just lobster slapped me
Joe: fuuuckkk man
Bill: It's gonna take weeks to get rid of it

Lobster slap by X_x.Butnuggets.x_X May 12, 2018

Lobster Claw. 

A woman's vagina when she has syphilis. Smells like fish and red in color.

I was going to perform oral sex on my girlfriend but i noticed she had lobster claw.

Lobster Claw. by Shagga1 August 23, 2018

lobster

a skinny woman with a large butt, as in "all the meat is in the back"

Dude, that chick is a total lobster, check out that ass!

lobster by E dirt September 6, 2018

lobster card

The alternative to oyster cards. Can be adapted using marker pen. Put an L at the front of oyster then turn the Y into a B. Because lobsters are way more tough than oysters.

"Can you please top up my lobster card"

lobster card by KevinKofta March 13, 2019

Lobster Rock

When you thoroughly get your vulva decimated via another person’s rock hard lobster cock

“Get ready to feel the lobster rock”

Lobster Rock by Lobster Rock July 14, 2019

lobster tail and beer 

Mr three favorite things in life.

"Lobster tail and beer" sounds like just two items instead of three, until you realize that there are no hyphens or commas in the phrase... THEN it suddenly makes sense! :P

lobster tail and beer by QuacksO August 16, 2019

Lobster slime 

Female wetness of the vagina

I put my hand on her vagina and she was soaking in lobster slime

Lobster slime by Hookey69 February 6, 2020