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1.
Generally called a sarcastic bastard. . . yet the person in question was clearly born in wedlock.
-Stop acting like Lorcan, your such an ass!
- I may be sarcastic but I'm no bastard.
by Slurry January 22, 2007
 
2.
Irish name, derived from the name Laurence. Means Little Fierce One.
Lorcan ya bleedin tick, stop lurkin in the bushes........
by Wolfbang Connoisseur February 03, 2010
 
3.
a very ugly rugby playing irish paddy cocksucker boy, overly into dubstep.
omg did you see my amazing tackle? cuz i'm a lorcan....
by amazingpersonmhssuckitt October 04, 2010