when some one has taken pills and the effects control the actions of your penis eg it will not erect for the duration of the effect of the drug
"shit i cant get it up ive got 'Pilly Willy'"
by greasey July 13, 2006
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When you munch too many dids and your cock shrivels up and remains floppy.

Derived from the Latin 'Pillius Willius.'
I couldn't shag that bird after the rave as I had pilly willy.
by sirgurnalot October 9, 2011
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When one has consumed too many ecstasy pills and therefore an erection cannot be achieved, resulting in no craic-at-all flaccidness.
''Sorry Charlene, I took way too many yokes in Club Hell tonight, just cant get it up, fuckin Pilly Willy.''

''You and YOUR PILLS!!''
by Martin Lynn February 6, 2014
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Getting so drunk That you end Up asleep on the floor with your penis out. In the morning you don’t remember and you pretend that you have a small willy because you was drunk
Oi max I saw your penis last night it was tiny. “It’s usually bigger I had pilly willy
by Deeda Hosty May 23, 2020
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