McDowell as Deep Throat was an admission of something irregular
Nicholson plays Colonel Jessep, an arrogant military commander cross-examined by a whipper-snapper military prosecutor (Tom Cruise) about whether he ordered the ‘code red,’ ie, a violent roughing up that killed a soldier.
Eventually, Colonel Jessep snaps - ‘You’re goddam right I did.’ The case is over. The angry old colonel is led away for courtmartial.