crippler
nounEtymology From cripple + -er.
1
A person who, or thing which cripples.
2
A corrugated board used to grain leather.
3
Biology, Birdwatching, Natural sciences, Ornithology A sighting of an extraordinarily rare bird, such that it almost has an paralysing effect on the birder.
- Blue-headed Wagtails and migrant Warblers were nice but hardly ‘cripplers’.1983, Bill Oddie, Gone Birding, London: Methuen, page 113: