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1.
A popular phrase that refers to acts of anal penetration. See also up the pumper and up stinkhole cove
"Yo man, like I was sayin', Tamsin refused to take it up the pumper or up stinkhole cove, but man she couldn't say no to a little chocolate speedway!"
by Mark November 23, 2003
 
2.
a nude anal game, usualy taken part by gaylords or straight sexually adventurous men (gaylords)or navy men (kaylords) or men with good girls.
simon - "hey duano, chuck that big salami down the dark alley, it will be like riding a speedway bike through a chocolaty puddle."
duane - "ok sime lets go chocolate speedway , bend over"
by busy supervisor January 14, 2009