Top Definition
Jack Off, then Sleep for 30 minutes. Hence J-S-30. For some, this is the ultimate form of refreshment.
Dude I was beat after that BioSci exam, but I went back to my room and pulled a JS30. Now I feel like a million bucks!
by Teve Torbes September 21, 2007
1 more definition
To jack off (J) and then sleep (S) for 30 minutes (30). Hence JS30. This is the ultimate relaxation combo.
Dude I was beat after my 8am so I went back to my room and pulled a JS30 before my lab. Damn was that refreshing!
by Teve Torbes September 29, 2007

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