nasty gram 

An e-mail written in a tone that is confrontational. It is often petty and lacking in tact. A nasty gram can be venomous, incendiary, and/or hateful as well.

Jeff didn't have the balls to talk to me so instead he sent me a nasty gram.

nasty gram by Wiseman July 14, 2006

nasty-gram

a message, note, text, or some form of written communication that harbors a malicious intent towards the receiver; usually stems from feelings of anger, betrayal, disgust, contempt, aggressiveness, or frustration; usually has a threat involved

My best friend ditched me last night because he met some girl. I sent him a nasty-gram this morning.

nasty-gram by Infectious.Night April 3, 2011

nastygram

Letter sent to an individual or organization in professional "business-angry" style, expressing displeasure about actions taken, or lack thereof.

I sent a nastygram to my cell phone provider regarding why they've not adjusted my account, and they were pretty quick to fix it after that.

nastygram by Ben Schumin December 12, 2004

nastigram 

A memo, letter, or note describing your displeasure with someone, or something which will usually contain expletives and derogatory remarks declaring your indignatations and scathing rebukes.
- In England use "nastigramme" - looks official to me

I had sent a nastigram to my vendor, because of their consistant larthgic attitude to my reasonable purchase orders. Then I had to update my spell-checker because shit was not listed as a suggested word.

nastigram by chuck price May 24, 2006

nastygram

A angry note thats to the point, but try's to mask just how angry they are. Normally left by your boss.

" my boss said she wansn't mad about taking the day off, but she did leave me a nastygram on my desk"

nastygram by Maggielivesindenver January 24, 2008

Nastygram

An angry letter, email, or note that expresses a person's distaste or disapproval for you.

After calling Cindy's house at 2am her parents sent my parents a nastygram.

Nastygram by The Official Pussy Monster June 21, 2009

nastygram

A note, often left anonymously, expressing displeasure of an action or perceived action of yours.

Someone who felt I parked too closely to him keyed my car and left a nastygram on the windshield.

nastygram by Eponym October 12, 2004