A sexual act in which the penis
is placed externally between the cheeks of the rear-end. This is akin to "doggy style dry humping" and is often an option when the vagina
is temporarily inaccessible. Named after the Washington, DC, treat, most famous from Ben's Chili Bowl on U Street, because the act could be described as resembling a half-smoked placed on a bun.
She likes to half-smoke when she's on her period.