Top definition
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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2
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 09, 2011
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3
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 06, 2014
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