Yadian is normally a tall brave strong man it is also a name in Cuban culture they are very daring and don’t care what anybody says about them and will do anything no matter how hard the situation is.
"yellow asian" i.e., Chinese, Korean, Japanese etc. An elaboration on the classification asian, which technically includes Indians but often excludes them in common usage.
Commoner: Hey let's get some Asian food I'm starving
Informed Guy: Well there is an Indian place across the street.
Commoner: Nah man, I mean Chinese or something...spring rolls bitch.
Informed Guy: Oh, you mean yasian. Let's go to Chinatown.