when you have your girl on her back and are having sex, you pull out and cum on her tits. as you do, her frog like tongue hits it like a fly on a lily pad.
i was having sex with my girl friend and she pulled a rustic frog as i was trying to cum on her tits.
The texture of an old man's beard when it's coated thoroughly with the seminal fluid of several men. Usually found on homeless men that turn tricks to buy booze.