A status whereby a deserving person does not get their comeuppence
because of an association with a proctecting power.
The protecting power is usually a friend or a relative, however a person or institution with authority can apply, for example an employer or company.
"I wanted to set Ben on fire and stamp out the flames but since he's my brother-in-law I have to bight my tounge and put up with the arrogant, racist cunt"
"I wanted to tell Karen she's being a selfish, spoiled cockteasing bitch, however my girlfriend is Karen's best mate and might not give me head if I insult her friend"
"I really wanted to kick the shit out of Paul but since hes my boss, I guess I'll have to wait until I win the lotto"
Ben, Karen and Paul all have Diplomatic Immunity