To use a straw to suck the seaman out of an anus... but first you blow as hard a you can down the straw to produce bubbles and then consume.
"I'm going to Feltch Blast the shit out of you tonight, i got a crazy straw hooked up to a 4-cycle blower"
by Halcom U Rbalzitch June 2, 2009
Get the Feltch Blast mug.