Sometimes, I don’t know if Constantine is a deliberate troll or something.
My Mandarin Chinese isn’t the best, but the tattoos Constantine transferred over to Oliver has four Chinese characters. The top one seems to be ‘mouse/rat’; the bottom-most one seems to be ‘pig’. They all seem to be written in traditional Chinese characters.
In Hellblazer #243, Constantine simply scribbled the Chinese characters for ‘scoundrel’ within a pentacle and pretended it was an occult symbol just to trick someone.
My friend directed me to this page, which says:
“The Chinese tattoo on his right side seems to consist of a bunch of random characters “鼠姜姚猪” which do not make sense when put together. Individually, the characters mean “mouse”, “ginger”, “Yao” (normally used as a surname), and “pig”. (Source: chinesetatoos.org)”

