Bitterus 

So bitter it makes the taste contagious.

The drink was so bitterus Brian felt it felt disgusted as well.

Bitterus by Argentinian Duck September 8, 2016

bittersick

when something is sick and wrong, even gruesome, but yet somehow still enthralling. One can’t condone or perhaps even accept what one is seeing, but one can’t look away either. Jackass, a public hanging, a NASCAR crash, two girls 1 cup, instant replays of a football injury, much of reality TV.

Dude, that was a bittersick sack LT laid on the Skins quarterback last night! Did you see it? The bone was sticking out of his leg. And they showed the replay over and over. Bittersick.

What that guy ate on Fear Factor last night, that shit was bittersick.

bittersick by JakeinthedirtyD February 1, 2009

bittersweet 

when something is good but there is a bad part about it

When I learned I won the contest I felt bittersweet knowing I beat out my best friend who wanted to win more than me.

bittersweet by theZimbu August 30, 2005

bittersweet symphony 

the most popular song ever released by the Wigan-based Britrock group The Verve on their third and final album, Urban Hymns. Bitter Sweet Symphony was released in 1997 and features a small sample from a Rolling Stones song which caused Verve to be sued for copyright infringement.

as a side note, the song is also among one of the easiest tunes ever written to become stuck in your head...

cause it's a bittersweet symphony, this life

bittersweet symphony by vervegirl October 25, 2004

Bittersweet Burn

The action of masturbation whilst having sunburn upon one's genitalia and using Aloe Vera as lubrication.

Johnny Bittersweet Burned himself to relieve his heated emotions.

Bittersweet Burn by Kony is Bæ July 4, 2014

bitterstone

A asshole that has no friends

Jack: That kid is such a bitterstone whats his name
Joey: Hes prob weird

bitterstone by SomeKidNick December 18, 2014

bittersweet 

A word that always works in English class if you need a word for tone. Even if you don't know anything about the piece you're talking about.

Teacher: "Blah blah blah, diction, syntax, imagery."
Student: "The tone of this passage sounds very... bittersweet."
Teacher: "Good job! You're my favorite student now!"

bittersweet by Parkour November 12, 2014