When a woman surprises you during a blowjob and licks your asshole
She was sucking my cock...and then switched around and started giving me a blowass!
A person, place, thing, idea, etc. that aids in ending a relationship.
Distance was a real blowass to John and Carol's relationship.
That fu*king kid Aaron was a real blowass to their marriage!
The only blowass to their undying love was...death.