1 definition by Andymac69

Top Definition
To be unsucsessful in achieving sexual intercourse for a prolonged period of time despite having numerous opportunities to do so.
lad 1) I think I'll take it easy with her you know, maybe wait a little while longer.

lad 2) Mate, don't be such a Cullen.
by Andymac69 April 13, 2009

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