When a person tries to jam something soft into a slot for a hard object and subsequently causes a delay in forward movement.
Mid stroke he went limp giving her a Puerto Rican tollbooth, there was a brief delay in which he called in a fluffer to get him ready for action again.
The trail of dark hair between a (usually) Puerto Rican woman's buttocks. A total turn-on if you've ever had the pleasure of bedding a hot 'Rican lady. Really tickles your nose in a 69.