"It's Party Time" is a lively and upbeat song by Joe Jonas that encourages listeners to let loose and enjoy a fun-filled party. The lyrics describe a place, possibly an underwater party venue, where everyone is invited to have a great time. The song suggests leaving your worries behind and embracing the excitement and thrill of the gathering. The opening lines mention a place beneath the sea that is waiting for the listeners to join in a ride, symbolizing entering a world of enjoyment and celebration. It invites everyone to come inside and get ready for the party that's happening that night. The chorus emphasizes the anticipation of the party, urging people to pack up, forego any stress or worries, and embrace the opportunity to relax and unwind. It encourages listeners to take chances, experience the thrill of winning, and let go of any inhibitions while having a great time. The song also mentions the arrival of "smalls" and "bigs," suggesting that influential or important people are attending the party. This creates an atmosphere of heightened excitement and promise for a memorable night. Overall, the song's meaning revolves around embracing the joy and energy of a party, leaving behind any troubles, and immersing oneself in a carefree and celebratory atmosphere. It promotes the idea of enjoying the moment and creating lasting memories with friends and loved ones.