The bol on your favourite pipe or bong.

'BOL' is the new lol. it stands for 'Burst Out Laughing', and was invented by someone very cool called Emili.

Slang term used in Philly to describe someone younger than you. Often times implying a possessive association with a preceding "My", when referring to a sibling or younger person who admires you.
If you are a young bol, then persons older than you are referred to as ol' heads.

In religious festivals of Gaudiya Vaishnavism Hari Bol is called out meaning: "Sing the name of Hari" or "Call out (or chant) the name of Hari". (Hari being the name for Krsna and Visnu)

From a more direct hindi translation: Bol = to speak, Hari = (a) god

It is used in many Hindi devotional songs.

BOL means "Black Out Lexi", referring to the moment wherein any girl named Lexi, Alexandra, Alexis within the premises is too intoxicated to define the term "BOL"

the word "B.OY" - in some neighborhoods - is pronounced:

BULL (but there's a lag on the "LL" making almost an "LH",

or BOL, but BOL doesn't have a hard L, and so it's usually more like

BOAH

Bol Bol taken from the indian meaning "talk to me"
In the translation it changed from talk to me to WOW THIS PERSON IS FUCKING HOT!
So in all Bol Bol is means one of the hottest people ever in existence.