Playing cards
Playing cards, or suits of the deck in general, usually indicate an inmate who likes to gamble. This applies to gambling games both within prison and without; it can also represent a person who generally views life as a gamble. This tattoo is very popular in Russian prisons, where each deck has its own meaning. A spade represents a thief; clubs symbolize criminals in general. Diamonds are reserved for stoolpigeons and informants – if the cards have this deck, then it was likely applied with force. Hearts imply that someone is looking for a romantic partner in the prison, which may also be forcibly applied.