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The common name for the K-pop group: B1A4. Coined by the eatyourkimchi blog from the Korean pronunciation of the numbers 1 (pronounced: IL) and 4 (pronounced: SA). B1A4 is then B-IL-A-SA, just like how B2ST is pronounced BEAST because 2 is said as 'EE' in Korean.
I'm looking forward to seeing Bilasa on Inkigayo next week!
Bilasa by lyngenberry November 8, 2013
Related Words

bailasan 

Bailasan is the most gorgeous and most trust worthy friend-bf dont ever let her go she will never forget you and cares for you alot also something else NEVER mess with her friends😪
Thats bailasan damn shes so nice to me and backs me up
bailasan by Sksksksssksks November 29, 2019

Bailasan Alshuaili 

Bailasan Alshuaili is sooo sweet
Bailasan Alshuaili by Luv ya<3 November 23, 2021
Word defined for animal puke, mostly Llamas, Goats, Sheeps or any kind of animal usually eaten by savage nomads.

Also another word for a cat's vagina, or whatever it is.
"EW! BILLY! YOUR HORSE JUST BILASA'D ALL OVER THE STABLE!"

"Look at Lisa, that ungrateful twit. She's such a bilasa."
Bilasa by blackitallbackjohnny June 26, 2012

blasaner 

Insane about talking
Bla-talking
Saner-insane
Thus Blasaner
A Blasaner cannot stop talking no matter what.
Carly wont stop talking about her new boyfriend,she is such a blasaner
blasaner by EarnYourWings September 21, 2013

Bilalsangham 

A group of people(preferably Sanghis) lead by Bilal
we are Bilalsangham
Bilalsangham by Bilalism August 28, 2019