Generally Bacchus is depicted as holding a goblet of wine, crowned with a laurel wreathes, intoxicated, and often of substantial size.

Myth has it that Jupiter hit Semele with lightning while she was still pregnant.   Then Jupiter took the fetus from her body and implanted it in his thigh and thus Bacchus was born again from the thigh of Jupiter.   This is how the name Bacchus, meaning "twice born" came to be.

Bacchus was then given over to nymphs to be raised, which seems fitting, as he is associated most commonly with festivals involving mobs of people celebrating, drinking, flirting, and engaging in sexual activity.   He is the God of wine, lust, and carousing with abandon.