What is Sly Sign?
1.
When you put your middle finger up to somebody behind an opaque object (predominantly a door), releasing anger but not getting into trouble. Usually used by young teens, aimed at parents.
"My mom was being so annoying... so i sly signed her through the door when i left the room."
"No way dude!"
See
Random Words:
1.
The state an object is in when it has arrived at a certain destination
The parcel came in all its arrivyness
It's arrivyness was ..
1.
A fan fiction spin-off series from Star Trek. Known from its superior humor and intellectually challenging characters. The Sci-Fi commun..