Noun
(prison slang) A cellmate.
(prison slang) One’s room of incarceration, jailcell.
(slang) A cellular phone.
celly (plural cellys)
(ice hockey slang) Diminutive of celebration; A goal celebration.
Lastly, Celly wanted a real-time service to replace their original custom websockets and long polling to deal with a heavy CPU and database loads. Source: Internet