“Why ain’t you wanted?” Lennie ask.
“Cause I’m black. They play cards in there, but I can’t play because I’m black. They say I stink. Well I tell you, you all stink to me.” – page 75
In this quote from crooks he says the reason why he’s never wanted and why he’s treated so bad. He probably says it with built up rage over the time he was treated poorly. He then says “well I tell you, you all stink to me.” What he’s trying to say here is that the white people stink, saying it as a payback, standing up for himself with all that rage, depression building up and waiting to let it out.