Belgarion 

The antagonist of the totally rad fantasy serieses, The Belgariad and The Mallorean by David Eddings. Can use the will and the word, and wield a giant sword fused with the power of the Cthrag Yaska. Unfortunately, he lets other people, such as Belgarath, Polgara, and Ce'Nedra push him around a lot and is forced into marrying Ce-Nedra.

Man, Belgarion kicks mega-butt when he's not listening to his screwed-up family.

Belgarion by Master Stuart December 30, 2004

Bengaring 

The act of sticking one index finger down your urethra while simultaneously sticking the other index finger up your anus, and joining the two little fingers at the tips.

"Ben is considered quite unsavory for bengaring."

"I have benga'd experimenting with sexual orientation."

Bengaring by Nigel Winterbird August 7, 2012

Bulgarian

The hottest and loudest people on the planet. You know you're Bulgarian when:
1) your normal volume is twice that of your other friends

2) you eat your body weight in baklava and shopska salad

3) you've been drinking beer since you were in diapers

4) headache? rakiya! knee scratch? rakiya! headache? rakiya! divorce? rakiya!

5) music videos are mostly softcore porn

6) you have to explain chalga to everyone

7) your baba will tell you to lose weight but won't let you leave the house unless you've eaten four servings of manja

8) you yell "opa!" at anything from your friends tripping up, to baking a good cake

"What are you watching, why us everyone naked and with lip fillers?!"

"I'm Bulgarian, it's just the newest pop song!"

Bulgarian by sophia00 August 18, 2016

Bellamione 

Considered one of the best Fan Fiction pairing to ever exist in the Harry Potter universe. Bellamione is the love between the two characters Bellatrix Lestrange and Hermione Granger. This pairing is very popular on Tumblr and well loved by many people. Comedian, Mae Martin, referenced this pairing during a BBC program Russell Howard's Good News when performing a composition called the "Erotic Fan Fiction Song".

Person 1: I really love Bellamione!
Person 2: Who doesn't?
or
Person 1: I'm off to read Bellamione!
Person 2: Living the dream I see.
or possibly:
Person 1: *reading Bellamione* Oh Bellatrix, I wish I was your Hermione...

Bellamione by TheBlushingBellamoineReader March 30, 2013

Bulgarian constant 

Basically anything which makes your result correct. (In Bulgaria they call this "coefficient of adjustment".)

your actual result × Bulgarian constant = expected result

Bulgarian constant by tomask July 7, 2021

Bulgarian Shit Twister 

When a woman squats over a man's meat stick while he is laying on his back, then unleashes a slightly loose dump similar to oatmeal. The woman then proceeds to insert the man's shlong into her anus and bounce on it while performing a plethora of consecutive 180 degree spins after each bounce; using her feces as lube.

Dude. Your mom gave me the best Bulgarian Shit Twister last night after your birthday party.

Bulgarian Shit Twister by WuddupDoe January 31, 2015

Bulgarian Shouting Match

An event that occurs between two or more people in various stalls of a public restroom. It begins when one person farts. If another person should fart and this continues back and forth, it becomes a Bulgarian Shouting Match.

Person #1: Hey, welcome back! How was lunch at that new Korean restaurant?
Person #2: Yeah the kimchi was good! Bathroom crowd was nasty though. I got into a Bulgarian Shouting Match in there!

Bulgarian Shouting Match by gannucard November 28, 2015