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2.
Said in disbelief, usually in reply to a potentially preposterous or unlikely statement, but can also be in recognition of an act.

Emphasis must be on the "ee" sound of both words, and accompanied by a stroking of the chin, regardless of presence or lack of own facial hair.

see variations at: Beee-aaard, bard, itchy chin, Jimmy, Jimmy Hill

Synonym: "yeah, right!"
Mr. A: My dick is 17.5 inches.

Mr. B: GrEEEEEn BEEEErd
by Rize December 15, 2003
 
1.
To Get Trolled/Joked at/ To get Lured.
Yo lets GreenBeard this kid...

Lol you just got Greenbeard!

Bro.. Its a GreenBeard
by Swag In A Bag February 12, 2012