Thanksism 

A "thank you" given to someone for a favor or action that has not yet taken place and never ends up materializing.
You have already thanked them for something they did not really do. It is not fair and can be taken back at any moment.

Yesterday my wife said she was going to give me a message when we got home from work so I said "thanks, I really appreciate that". We got home, she ate dinner and went to bed with no message yet had already received her thanksism. I woke her up and took it back.

Thanksism by Taige July 31, 2007

Thanasis 

A man of Greek origin. May own small islands in the Aegean and welcome visitors with exuberant declarations of 'Welcome to my island'. Thanasis is generous, fun-loving, romantic, sexy, a great lover and a true and loyal friend. Thanasis will lend you anything and try to procure anything you want that he doesn't have. Often quite hairy. Likes to party hard, love well and uses the word brave to mean big. A Thansis is a wonderful human being.

Girl 1: I met this awesome guy in Greece
Girl 2: Did he own the island?
Girl 1: Funnily enough he did!
Girl 2: He must have been Thanasis then!

Thanasis by Achanaich August 24, 2011

Thanksies 

To show thanks towards something

Can you place that stationary order? Thanksies

Thanksies by Uberstyle May 18, 2010

Thanksss

She wants to fuck you bro one too many s’

Guy: nice hair
Girl: thanksss
- has passionate anal -

Thanksss by Neeck groes January 6, 2021

thanksss

Showing gratitude and appreciation for something

I like your shoes
Me: thanksss

thanksss by Cow Li November 13, 2019

Thanoism 

Tha-no-ism

The belief that in order to preserve what is left of our planet, the human population must decline.

“Ever since Thanoism was implemented, I lost all my friends and family to the death squads paid to roam around, killing innocents.

Thanoism by Meridionalis May 3, 2019

Thankish 

Saying thank you in a cute way

thankish for the cheesecake

Thankish by tantan88 July 5, 2010