look up any word, like cleveland steamer:
 
1.
To get massively owned

Derived from Ceciliantas who was caught cybering online then got publicly humiliated
Oh snap you got ceciled

Man he was just ceciled bad

Haha I ceciled you
by Bob January 01, 2005
 
2.
to be stolen from or otherwise fucked by a friend.
As in chris cecil
by jimmy m. smith July 15, 2003