Run-stiff 

used to describe someone who is keen as/desperate or horny for sex so much they look like a naked man running with a hard on.

Also used to describe how much you want/wanted to have sex with a girl

haha you were so run-stiff over that girl on friday night you couldn't take your eyes off her!

yeah bro when I saw that bitch shaking dat ass she made me sooo run-stiff I just wanted to fuck her right then

dude I saw you talking to that girl it was so obvious you were running stiff for her

shit I'm feelin' run-stiff tonight bro lets go get some pussy!

Run-stiff by yo bama February 10, 2010

Sniff-And-Run 

Someone who sneakily snatches a pair of ''your'' underware from ''your'' room and quickley runs to the shitter to violently sniff at it whilst rapidly jerkin' thy's gerkin with a pervy grin on one's face...

AKA: Sniff-And-Run

Oh, It was one lovley Christmas Eve, when I excitedly got up early to attempt to catch-out 'Santa Clause'.

Then, I heard a sound that sounded very much like a 'Reindear' eating the food we left out. but to my shocking discovery, was just just my ''Good old'' Uncle Davie, with a pair of my dirty underware to his nose with his ''COCK!!!'' In his HAND!!!!! Who then tried to run away!!!...

AKA: Sniff-And-Run

Sniff-And-Run by Jack-AllieBoiz November 6, 2011