Reply to https://twitter.com/AtheneTrek/status/1575449556527255552?t=bTzsiGi9b4Ikzw4br6q7iQ&s=19

I think the expression is meant to be understood as "you want to eat your cake and have it too", i.e. you still want the cake after you've eaten it, i.e. you want things both ways. Or, at least, that's the only way it makes sense to me.