To relax, lie down, chill out. To be at one with the TV. To be close to the duvet. Ususally carried out alone, or with one's very closest friends/lovers. To flump is to say goodnight to the rest of the world, close the curtains and switch off the mind to all the stresses and watch rubbish TV or listen to cheesey music.
At the end of a long day, I decided to stay at home and flump.
It's important to have a good flump every now and then.
I just feel like flumping tonight.
I flump, you flump, he/she flumps, we flump, they flump.
I flumped, I was flumping, I would have flumped, I could have flumped, I should have flumped,
It's important to have a good flump every now and then.
I just feel like flumping tonight.
I flump, you flump, he/she flumps, we flump, they flump.
I flumped, I was flumping, I would have flumped, I could have flumped, I should have flumped,
by Grubbler April 20, 2006

adj. A portmanteau of "fat" and "plump," usually reserved for describing poultry while it is still alive.
by Penile Bleeding September 05, 2012

by superfunhappyslide August 07, 2008

The act of standing back to back with a friend, excreting simultaneously to produce an entwined lump of faecal matter which resembles a Flump marshmellow.
by Blacksun666 June 02, 2010

by captainlonghair April 18, 2005

When two people are standing facing each other, usually celebrating an event, and one goes in for a high five and the other goes in for a fist bump and their hands collide in a dissapointing way
"I was going in for a fist bump, and he thought we were going to high five, so we just kind of.... flumped. "
by ArmyInfantry11B September 17, 2016
