when you are eating something, (or someone) the contents being eaten travels down through your "swallow canal" first, to enter your stomach. also referred to as your "gullet" or scientifically, "esophagus."
Fred-Hey Bob, why aren't you talking?
Fred- BOB?!?! crap, your bacon must be stuck in your swallow canal! *procedes to give Bob heimlich*
Bob (recovering)- thanks fred...it was just stuck in my gullet! i should have swashed it down with some water.