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1.
An intentional mis-spelling of the internet phrase "ya rly" for amusement, aka "the lulz"
Ian says: a Rock Star costs $2.99 in the store. However Rock Star with 6.9% alcohol is $2.95
Cam says: O RLY?
Cam says: YARDLY
by C@CTU$ November 27, 2008
 
2.
When your belt size is 36 inches, your waist is a yard in width.
I saw Big Rob over there and I knew in an instant he was a yardly.
by Big Rob and Lil Dan February 25, 2011