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1.
how much a person blinks. High blinkage- blinks a lot. Low blinkage- blinks very little.
Nic, a freak, had no blinkage.
by Matt July 05, 2003
 
2.
A nervous tic of the eyelid.
You could tell from Bill's blinkage that he was lying about never having sex with that woman, Monica Lewinsky.
by harry flashman July 16, 2003