Overly used phrase when a simple "thank you" will suffice. It's improper grammar is popular over the proper grammar "thank you very much".
Thank you so much for not saying thank you so much to me.
When a girl kisses you while you're on the toliet pooping
Stacey gave Stan a San Diego Thank You while he was pooping.
On April 4th, we will thank Josh's from around the world for all the rage they induce in our world.
Josh-Yes! It's April 4th!
Jason-Oh yeah! It's National Thank Josh Day! Thank you Josh!
A special burger that comes with peas
"Hey Bob, what's the burger of the day?" "It's the Peas and Thank You Burger, you should try it!"
An exchange expressing gratitude between two people who are close to each other in the UK, usually the South West, in a fake American South Accent.
"Would you like a cup of tea?"
"Why thank you, hedgehog."
When I offered him a cup of tea, he said, "Why thank you hedgehog"!"
A kiss given while sitting on the toilet.
Guy 1 to All: I've got to go hit the john.
Guy 2 to Girl: Go give him a San Diego thank you!
Standard phrase used by people of indian/pakistani descent when you leave their dairy queen/convenience store/days inn/dunkin donuts/taxi.
Welcome to the Quickie Mart. Would you care to try a purple slurpee?
No.
...
Thank you, come again.