A strongly-worded letter sent by an attorney in an attempt to modify the recipient's behavior without going to court or arbitration. Typically threatens dire consequences if the behavior is not modified in the way specified.
Most cease-and-desist letters or content-removal letters, common on today's internet, constitute angrygrams.
slip of the tongue perhaps,
Those idiots who drive around in a ridiculously raised pick up truck, making a top heavy vehicle even more top heavy and unstable
A:*gah*
B: "Whats the matter"
A: This dam prickup is blinding me.
B: Stupid thing's, as if there lights weren't blinding enough as it is.