dinkum
adjective /ˈdɪŋkəm/
/ˈdɪŋkəm/
(also dinky di
(Australian English, New Zealand English, informal) /ˌdɪŋki ˈdaɪ/
/ˌdɪŋki ˈdaɪ/
)- (of an article or a person) real or saying only what is true
- If you're dinkum, I'll help you.
Word Originlate 19th cent.: of unknown origin.