second-degree burn

Essentially a 'burn' about a burn (e.g. sunburn) that was mentioned in a particular episode of the ever-popular That 70's Show (see burn).

Jackie: Gee, I wish there was someone to help me put sunscreen on my body (hints Hyde).
Hyde: Good idea because sunburn could quickly lead to skin peeling.
Kelso: Aww man. That's a burn about a burn. That's like a second-degree burn!

Second Burn

The burning sensation in one's anus when defecating after eating something spicy.

i.e. It burns once going in and again coming out.

Afterburn

1: The habanero burned my mouth pretty badly, but the second burn was even worse!
2: Oh man, the second burn from that salsa had me on the toilet for hours!