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A person who likes/comments every status on your facebook. just to like them. usually a very irritating human being.
"i had like 20 notifications from that serial liker the other day!"

like facebook serial
by facebook nut August 04, 2010
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2
A person who likes every single post on Facebook of his/her favorite friends, no matter how stupid they are.
Damn, i was browsing Lucy's pictures on Facebook and in everyone of them there was a 'Like' by her friend Susan. She must be a serial liker.
by Stephen_Trimballs November 27, 2015
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