IPA: //ˈtʃɒpˌfɔːlən//
KK: /ˈtʃɑpˌfɔlən/
Feeling sad or disappointed, often due to a loss or failure.
After hearing the bad news, he looked chopfallen and lost his usual enthusiasm.
The word 'chopfallen' originates from Old English, where 'chop' (meaning to cut) and 'fallen' (meaning to fall) combine to describe something that has fallen as a result of being cut. It conveys the image of something that has been severed and has subsequently fallen down.
Think of something that has been 'cut' ('chop') and then 'fallen' — that's why 'chopfallen' describes something that has fallen after being cut.