Top Definition
a wee green man (not to be confused with alien) that comes from ireland. They are often found pissed from drinking too much quality irish drink or smoking to much 'ganjabhang', and if they are found in this way it is likely the leprachaun gives away his gold treasure and good luck. Leprachauns are impossible to catch and even harder to see. If you do see one - you're pissed.
'jesus mary and holy saint joseph - did I just see a wee leprachaun??'
'No ferghal, that would be your cousin.'
by Colette February 21, 2004
a retard is also known as a "leprachaun"
"im a leprachaun! i can hear de sea!" (holding a brick 2 his ear)
by ash_rox June 12, 2006
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