stealing the thunder

This idiom is used when a male gets a boner from something sexy and his heterosexual friend gets a boner as well. This is because the second guy reacts with a boner because upon seeing the first guy's boner he thinks to himself, "man, he's got a boner, there must be something hot around!" It is often awkward, especially among junior high and high school kids.

Man, that chick is hot!
Yeah, man. Aw, that's gross.
What?
You're stealing the thunder!

rod o thunder

A huge, equine-like dick

She damn near passed out when I whipped out my rod o thunder!

thunder down under

motor boating a vagina

and then sian created a thunder down under.

face like thunder

face looks like a terrible hurricane/ struck by lightening or electricuted.
just generally your a right ugly beast

rite darlin' uv gota face like thunda

thunder mountain chowder

Lo que pasa cuando no te sale el duro. Esperas hasta que la chica salga para España para contarles a tus amigos que vomitaste en su pecho despues de echarle un pedo.

Mr. Stewder performed a thunder mountain chowder on that nice girl from Spain; he'd had too much to drink after eating some bad chile and couldn't get it up.

fart against thunder

Equivalent to pissing against the wind.

"You can't fart against thunder"
Probably of South African origin.

swashbuckling thunder cunt

1.One of two cunts swordfighting, with thighs bigger than a house
2.The common name for a cat

"You are such a swashbuckling thunder cunt."