Orphan Poker Skills

Listen up, simpleton. The joke is a play on words, combining the poker hand 'full house' (which is a pair and three of a kind) with the concept of a 'full home' or family. Orphans, being without parents, lack a complete family or 'full home.' So, they wouldn't understand the term 'full home' in the context of family, which makes the joke dark. Get it, or are you still trying to figure out how to count cards?