Pro Blowno 

When a hooker\prostitute relinquishes their services without charge. Most often in the form of a blow job.

The hooker in Vegas felt so bad for Jim that she went back to his room with him pro blowno. That almost NEVER happens!

Pro Blowno by zero3187 April 29, 2014

Pro-blowno 

Problowno reffers to a free blowjob without strings. Like free legal representation but a blowjob.

We met at a bar and she went pro-blowno.

Pro-blowno by thisiscool June 3, 2018