1 definition by WILDCARD760
Faceblock: /fās/bläk/ verb; To Faceblock is to prevent another person, intentionally or inadvertently, from having sexual intercourse with a third party via Facebook. A faceblock or faceblocker is a person who engages in such obstruction or intervention.
Ex. "I thought everything was going well with Jessica and I. Until Ryan tagged that picture of another woman and I, and totally faceblocked me."
by WILDCARD760 April 26, 2011