'Bunking up' involves multiple (at least 2) people sleeping in the same bed and usually involves spooning in some arrangement (preferably the quad-spoon formation). It generally occurs between the hours of 1 am and 3 am after large quantities of alcohol and a long night of pesting

Sometimes the bunk up follows the age old rule of spooning leads to forking - however - it can be completely platonic.

The ideal number for a 'bunk up' is between 2 and 4 - however there have reports of a 5+ people in a spooning arrangements.

Common issues with 'bunking up' include over heating, a uncomfortable sleep and people getting handsey.
Scotty - are we bunking up?
Rob - Let's bunk up - who we going to invite back?
by Bunk-up-delux February 23, 2011
Get the Bunking up mug.
to sleep in the same bed with someone (not just in the same room).

British usage.
Although Sam only has a single bed, he lusts to bunk up with seb every night.

When Tom met that hot piece, they hooked up, went boozing, and decided to bunk up all weekend.
by stsebastian November 29, 2009
Get the bunk up mug.
to assist a climber by pushing him/her upwards
"'ere Stephen, g'is a bunk up, I'm nearly over this wall."
by theWestHamfan October 27, 2003
Get the bunk up mug.
Several words tethered together loosely to form a phrase, coined by the very definition writing creature of whom is writing right now, Sorbet/Sobek/whateverthehjonk.

The individual meanings are as follows:

Bunk up”, similar to fuck up, but slightly lighter

“Steez”, either something to do with personal style, or a vibe you got goin’ from something.

Collectively these words of which coalesce into a phrase form the aforementioned, which in whole means to throw off a vibe/resonating frequency, or to otherwise “cramp on one’s style”.
Jeff: Man, Discord crashing bunked up the steez real good.

talking moose (named Kyle): Jeff what the hell does that even mean are you okay.

(Bunk up my(/the) steez)
by Doctor Sobek June 21, 2022
Get the Bunk up my(/the) steez mug.