The freezing winds that are let into your warm bed by other persons when they move without taking precautions to look after your warmth. Example: As Jason gets out of bed and lets in the freezing winds, I yell at him saying, If I have told you once, I have told you a thousand times! DONT LET THE FWINSIES IN!
FWINSIES
Meaning of FWINSIES in English
Slang English vocab. Английский сленговый словарь. 2012