clacker
noun
1
the backside; the anus. Probably from 'clacker' a ratcheted noise-making device, alluding to farting. Not a perversion of 'cloaca' AUSTRALIA, 1960.
2
a young woman; a group of young women; young women in general. Military UK, 1984.
3
a dollar US, 1918.
4
a triggering device for claymore mines US, 1990