Usually refering to a transexuall (most of the time japanese) woman with a pencil shaped penis. penis must be over one foot otherwise it is referred to as a "qibblesnaffer".
"Yo man have you seen that new japanese girl? She has a huge pant snake"
"Yeah man its all the way down to her kneecap!"
"Yeah man its all the way down to her kneecap!"
by Midget spinner June 6, 2017
Get the pant snakemug.