A large dick that is slightly flaccid. Not all the way erect.
ahh look at my wang dilly :(... Sarah! Cum make him hard again!
by PMaster November 15, 2004
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The sound a rock makes if you skip it across ice... sounds like twaaaannnggnnggnngg
Did you hear that rock twang dilly?! That was awesome!
by lilanomie October 23, 2019
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