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The act of finishing a blowjob without spitting, wiping, or being the cause of blue balls.

(This age-old technique is celebrated by men everywhere, and maintained by some of the finest college women on the planet.)
Sure, Sheila's young and new to the deepthroat, but she is showing a lot of promise with a solid swallowthrough...

Tim's mom sure talked a big game, but I wasn't entirely convinced that she could back it up until she hit me off with a mean swallowthrough!
by Your Local Wingman November 22, 2009

Words related to Swallowthrough

head hummer snowball spitting swallowing swallowing the kids