Flipdunk 

A flipdunk is a sex move that will astonish any women, you take your penis like it's an oreo, do a flip and land it in her vagina with a fat sploosh

Me: you ready for this flipdunk baby?
Her:Oh yes daddy.
"KERPLUNK"
Her: UUUUGGHHHH!

Flipdunk by itzFoXiEsT April 2, 2020

flipduck 

Flipduck - lipd = (Well, WHAT DO YOU THINK???)

Hint: One definition of the answer word means "to copulate"

Get the flipduck outta here, you C-less Castle!

Oh, flipduck! He's coming! Step on it!!

For flipduck's sake! Do you realize how Gasoline that was of you to say that?!

flipduck by Java October 8, 2004