Top Definition
Film Bulk Acoustic Resonator:

is a device consisting of a piezoelectric material sandwiched between two electrodes and acoustically isolated from the surrounding medium. FBAR devices using piezoelectric films with thicknesses ranging from several micrometres down to tenths of micrometres resonate in the frequency range of roughly 100 MHz to 10 GHz
The duplexer in most cellphones is based on FBAR filters
by FBAR_BAW July 12, 2011
an acronym for Fucked Beyond All Recognition
give it up, john, the tories are fbar....
by poodlewrestler November 10, 2003
Acronym for Fat Beyond All Reason
(could also be Fucked Beyond All Reason)

You can add -BAR to any letter to create a new acronym, such as "RBAR" (retarded beyond all reason) or "CBAR" (confused beyond all reason)
That Emilio kid is so FBAR.
by shaquanda420 July 10, 2008
fucked beyond all return
this mission is fbared.
by M&M October 23, 2003

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