Havingsexual intercourse or engaging in a caressing manner with a hesh person. It is a severely scary and harsh disease that is only now augmenting. Common HeshTD's are coffin dick/vagina, turtle dick and taco dick. Scientists are only now discovering more extreme variations of HeshTD's.
Adam: Yo man I had sex with melissa at the party last night!
Kevin: Dude she has HeshTD's!! Your gonna die from coffin dick!
Hesh is sometimes perceived as a person with just tight pants. Wrong. Hesh is a very dirty person that doesn't car about anything and doesn't take showers for months on end... They love to rub their clothes in dirt before each day and rip holes in their jeans. Let they're facial hair just get loose and put indian jewelry in they're hair.
Jordan: Yo that guy is hesh
Glenn: No man that guy is a skater... That guy is a hesher with the tomahawk necklace and feathers in his hair!