Definitions by Tromboneofsteel

Willywag

A random full-body shake or shiver with no apparent cause. Similar to the Heebie-Jeebies or a hypnic jerk.

"Brroah"
"The heck was that, man?"
"Just a Willywag."

Stands for "Single stage to orbit" when related to spacecraft.

Guy 1: hey, what are you looking at?
Guy2: I'm watching a video of nasa's latest SSTO launch.