When the jury can't agree on a verdict.
Homer: So "if" we get "deadlocked", we'll be "sequestered" at the Springfield Palace Hotel. Where we'll get a free room, free food, free swimming pool, free HBO. Ooh! Free Willy!
by Principal Skinner December 31, 2007
1 more definition
When a guy and girl are fucking locked in doggystyle firmly and intensely.
We were deadlocked last night for three hours straight.
by NO FUCKING NAME February 13, 2011