INBD 

stands for "it's no big deal!"

mom: BETH ANNE!
beth anne: wu?
mom: your cell fone bill is whats up. all this texting!
beth anne: omg INBD!
mom: it is a big deal! who are you texting 50 times a day??
beth anne: IDK my bff jill?
mom: well tell ur bff jill that i'm taking away your fone!

INBD by m.r.a. July 31, 2007

inbd 

its no big deal commonly used to talk about money

Mom: This is outragous! Its too expensive!!!
Kid: Omg! inbd!!!!

inbd by Lexi Nicole May 3, 2007