With A's ear pressed firmly against the headset, and B's penis pounding their headset, person B's penis will majiklee enter the head of person A, giving them, quite literally, a mindfucking experience.
A term from 19th Century Britain that uses a simile that is rather defunct. It stem from a time when houses were padlocked down and hidden in underground nuclear bunkers, along with whoever was in there, and burglary was less common than finding the bank of England without security guards... or so many old people would have you believe. Just use sarcasm to shut them the fuck up.
Although on paper, they are supposed to be faster, low end and middle classed products tend to be noticably less sturdy than Beamers of similar price. BMW can't compete with the high-up Benz' though, Bavarians don't going faster than 155mph