These are the songs by Ween that have been used in setlists.
Skycruiser
Performed by Ween1
Slow Down Boy
Performed by Ween22
Sorry Charlie
Performed by Ween92
Spinal Meningitis (Got Me Down)
Performed by Ween644
Spirit Walker
Performed by Ween15
Springtheme
Performed by Ween75
Squelch the Weasel
Performed by Ween74
Stay Forever
Performed by Ween62
Strap on That Jammy Pac
Performed by Ween37
Stroker Ace
Performed by Ween252
Suckin the Blood From the Devil's Dick
Performed by Ween39
Sweet Texas Fire
Performed by Ween37
Take Me Away
Performed by Ween608
Tender Situation
Performed by Ween99
The Blarney Stone
Performed by Ween240
The Concert Is Over
Performed by Ween21
The Fruit Man
Performed by Ween1
The Goin' Gets Tough From the Getgo
Performed by Ween127
The Golden Eel
Performed by Ween301
The HIV Song
Performed by Ween415
The Mollusk
Performed by Ween552