Wadder; from the noun wad. Slightly vulgar.
Some apt definitions:
- Informal. a comparatively large stock or quantity of something, especially money:
He’s got a healthy wad salted away.
- A plug of cloth, tow, paper, or the like, used to hold the powder or shot, or both, in place in a gun or cartridge.
- British Dialect. a bundle, especially a small one, of hay, straw, etc.
From the urban dictionary. Very vulgar:
Short for “panty wadder” – someone who is a sissy and likes to bitch and moan about everything.
From the sewing blogosphere:
A project that is a failure.