look up any word, like half chub:
 
1.
night ryan is a term used to send someone named ryan to sleep. how you use this word is you start talking about something else and then suddenly night ryan.
Me:yo man lets play ps3 and eat a sandwich after we step outside and blaze a fatty cuz night ryan
Ryan:stfu
by LilCheech&LilChong February 14, 2013