Definitions by nicktheprickswag

facebook thumb 

It is the tumb up button used in Facebook chat that is only used for sarcastic purposes. It cannot be used as a sense of apporval or anything else as it is solely at sarcastic thumb.

Fb'er 1:Saw a cow today
Fb'er 2: 👍
Fb'er 1: ahh not the Facebook thumb

facebook thumb by nicktheprickswag March 14, 2014