Top Definition
Erinaceous \er-uh-nay-shus\, \ɛ.rɪˈneɪ.ʃəs\, \ˌɛ.rəˈneɪ.ʃəs\

adjective
1. Of, pertaining to, relating to, or resembling hedgehogs
2. John Watson (See: Martin Freeman)
"Is Martin Freeman erinaceous? "

"Yes: he laughs, he cries and then rolls himself into a little prickly ball and hibernates for the winter."
by callmeamanda June 05, 2012
2 more definitions
Prickly or bristly manners.
Erin was erinaceous so no one wanted to be around her.
by K8888888888888 October 31, 2007
Totally inane and incomprehensible state of mind; often mistaken for being "stoned"
"I'm feeling very erinaceous today"
by EloiselovesErin April 26, 2010

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