stupid question

what does H.A.M.B. stand for? i have searched and i have found no answers

 

O K Btw is one that throws me. I think I have a handle on the rest, so I am sure this one will be obvious, but I just can't see it
Thank you Rod

 

Thank you ... I use to Know what most things stand for but, WOW how Words (Or lack of words) evolve... FNG ... lol ... WTF ...

 

These aren't actually words, but rather, initial-isms. HAMB on the other hand is an acronym.