sore·head 
/ˈsoɚˌhɛd/ noun
plural sore·heads /ˈsoɚˌhɛd/ noun [count] US, informal + disapproving : a person who easily becomes angry or upset
▪ Just because you lost, don't be a sorehead!
▪ Just because you lost, don't be a sorehead!
— sore·head·ed /ˈsoɚˈhɛdəd/ adjective
▪ a soreheaded loser
/ˈsoɚˈhɛdəd/ adjective ▪ a soreheaded loser
