pre-chup

The watery substance in a settled catsup/ketchup bottle. Similar to pre-cum, hence pre-chup.

Damn, I have pre-chup on my hot dog again. Next time I have to shake the catsup bottle.

by Scott Root October 27, 2006

prechup

The runny tomato water that comes from a ketchup bottle if one does not thoroughly shake it before use. Sibling of musquirt. Derived from precum.

Put it in a cup on the side just in case. I don't want any prechup on my burger.

by roundthewheel December 28, 2008