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Thumb Rack

The dimples located on the lower back used to rest the thumbs while hitting it from the back.

While Tiffany was bent down tying her shoes, Alec shouted" Those are some nice Thumb Racks!"

by JPetto19 December 13, 2023


Thumb Rack

The two dimples on the lower back that are used to rest your thumbs while hitting it from the back.

When Tiffany raised her arms at the concert you could see the dimples on her lower back. Alec said "That's a nice set of thumb racks"

by JPetto19 December 1, 2023


Thumbing it

The act of placing your thumb into your own anus, usually while masturbating

“I caught your dad thumbing it in a bus stop yesterday”

by Big swanno October 13, 2020


Thumbing it

thumbing it is where you And your pals are gaming all night

Mate me and Ike where thumbing it last night

by Alfiebear007 November 30, 2019


Crooked Thumb

A big olstraight bottom. Has no power. Submits to his woman’s whims.

I thought Melissa’s boyfriend was secretly gay. Turns out he was just a crooked thumb.

by Jizzñe____007 June 8, 2024


thumb-kin

noun

Something that giving a thumbs up to is greatly ironic.

The definitions of "thumb-kin" are thumb-kins.

by Palec Smuk January 21, 2007


leg thumb

Penis

Emily saw my leg thumb when it fell out of my swimsuit today.

by Bain_Train September 4, 2017