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1.
The sound made by the esophagus after a penis slams it with extreme force blocking the airway.
"Hey baby, can I get some head?" .."Sure honey" .. "open wideeee" "....GAULK!!!!"

gaulk blowjob head brains knowledge esophagus
by El Animal November 02, 2012
 
2.
To stick something together using an excessive amount of adhesive.
"Just gaulk it up with tape, then it will stay put."
by Curtis Granberg February 23, 2009