'Locked On' - adjective: slang pod term used to describe moments when a person gets completely obsessed with an idea and keeps running with it until they realise that they're acting like a freak. Often includes rambling and random tangents. Generally 'locked on' period lasts no more than 5-10 minutes, but has been known to extend to the wee hours of the morning and result in some really stupid decisions (commonly combined with alcohol/alternate means of intoxication in these extremes).
When two dudes sleep with their asses facing each other in the matter to avoid any other aroused personsaccidentally penetrating them during their sleep