The action of cumming in a condom, putting it in the freezer for an hour, blending it, then baking it on a baking tray then proceeding to put it on your cold blanket for warmth.
by THEONE209 February 2, 2020

When you get so shit faced that you pass out, and someone puts a shirt with pictures of Jez on them on you, like a blanket. They also shit in your mouth.
by partyboy123 December 3, 2021

All day spent on the couch generally not giving a f*ck about the world or interacting with the human race. Wrapped in a blanket, it's the ultimate chill day. Waisting your entire day watching TV, playing video games, watching movies, often times in your pajamas and not showered for the entire day. B.i.B usually occurres following a long work week, a night of heavy partying, or when your home sick.
Ex 1) You're hungover? Are we gonna see you later or are you B.i.B (Blanket in the Butt)?
Ex 2) I had a f*cked week at work, I'm B.i.B all weekend...
Ex 3) I've got the cold from hell, I'm B.i.B with some hot & sour soup and Theraflu.
Ex 2) I had a f*cked week at work, I'm B.i.B all weekend...
Ex 3) I've got the cold from hell, I'm B.i.B with some hot & sour soup and Theraflu.
by T. Dub January 12, 2013

a blanket that you has been in your house since you were four and when fall asleep on the living room couch you use that blanket and it probably has animals or cartoon characters on it
by family blanket lover April 16, 2020

Me: Hey, I am going to take a nap on the couch.
My mother in-law who owns 8 dogs: Okay hun, enjoy that Boston Blanket. I'll go turn on the fan.
My mother in-law who owns 8 dogs: Okay hun, enjoy that Boston Blanket. I'll go turn on the fan.
by Domitri July 5, 2023

As i laid in bed masturbating i grabbed the baby blanket to cum in. After i came i cleaned up with the baby blanket and threw it in the laundry basket.
by GwarMachine March 5, 2020

Person A: Have you seen the blankets?
Person B: Yeah, I was using them.
Person A: Why all of them?
Person B: Because I was doing a blanket fish!
Person B: Yeah, I was using them.
Person A: Why all of them?
Person B: Because I was doing a blanket fish!
by ChameleonDragon May 14, 2019
