A time-period occuring weekly between friday afternon and saturday morning. This time is usually spent in an intoxicated state prefferably among other people.
The expression is commonly used among students to help plan the start of the weekend.
-What are you doing this swiday?
- Me? ...Probaly the ush, play some beerpong and drink too much.
The ultimate swirly wherein the toilet already has a multitude of turds inside of it. The victim's head will stink for hours, even days if the turds are rancid enough.
Bully: Ha! I gave Nelson a fucking chocolate swirly! Now his hair is all brown!