basicly bl= belly laugh
bl not lol!!
person1:that wasent funny
person2:oh well lol
person 1 : (sumthing reeli funny)
*Taken from the Seinfeld episode "The Lip Reader"*
George: She's a BL.
Jerry: A BL?
George: Yeah, a BL, a beautiful lineswoman.
Person 1: (Insert your favorite joke here), send/tell to person 2.
Person 2: BL!