The act of your penis retracting into your stomach, as a result of the force of nature along causing the penis to shrivel up into a small penis that resembles that of a slinky
One who has been fully vaccinated for the COVID-19 virus and brags about it.
Two weeks after the second shot and that vaxhole is posting selfies from a Cancun bar.
Richard: Just want you all to know that I am fully vaccinated!
Greg: Oh, Greg, you slinky dick! 'Bout time you got your vax! Let's hit up AppleBees later, bro.