1 definition by Fuk_ISIS

When the motivation gives you a massive erection. Both men and women can have moto-boners.
As Sergeant Brown mowed down some Haji faget fucks with his .50 caliber machine gun he began to grow a moto-boner. He then proceeded to spit the juices from his chewing tobacco onto his hand and slowly move his hand down his pants.
by Fuk_ISIS February 24, 2018
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