biy 

1. Northern Irish (Norn Irish) for 'boy'. Used as a replacement for the typical 'alright mate' used in other parts of the UK.

2. 'Oul biy' Another Norn Irish word for a marijuana cigarette.

3. A greeting from one biy to another.

1. Yeeooo biy! What's the craic? where's the rest of the biys tonight?

2. Well biy, you coming out for an oul biy?

3. 'Biy!' ... 'biy!'

biy by WhiskyDrinkinBiy January 31, 2005

BIY 

'Believe In You'

You should just BIY.

BIY by LilRockit January 1, 2017

BIY 

Book It Yourself

“Omg, I’m so stressed and have no time to get on the next flight. Can you help me out?”

“...BIY...”

BIY by Hdudvdjff September 2, 2020

BIY 

BelieveInYourself!

BIY JlispyProb!

BIY by TrumpTheKiđkissingSexoffenđer. November 13, 2020

Biy 

Meaning in a short time normally no longer than 2 hours

Will do in a biy

Biy by The man who does words March 13, 2022

biy biy 

Like top tier cunt

That Cameron is a total biy biy

biy biy by Camzo ninety 9 December 23, 2022

Suit biy 

A major gimp who listens to lassie tunes. Likes to ruin the DBM’s fun by taking down their minted flags at the fitbaw. His da, suit biy senior is the person thought to of given suit biy his gimpyness. Suit biy was given the birth name of Stuart ‘gimp heed’ Marshall.

Suit biys a gimp lol x

Suit biy by LolYerDa69xoxox June 30, 2018