Green’s Dictionary of Slang

b.t. dubs phr.

[abbr., where dubs=W]

(US campus) by the way.

Rice University Neologisms Database 🌐 Oh, b-t-dubs, did you hear the latest news?
[US]C. Eble UNC-CH Campus Sl. 2011 2: B.T. DUBS < B.T.W. <by the way ‘B.T. Dubs, I loved the shoes you wore last night.’.