shtum 

Slang term used mainly in London to mean quiet or silent. Pronounced "shtoom".

Keep shtumm and we won't get caught.

shtum by B-Den June 19, 2006

shtum 

adjective: to keep quiet, with regard to not talking about something.
Used throughout British Isles

You better keep shtum about that before the whole world knows!

shtum by EvilOverlord September 20, 2004

shtum 

Shtum is closely related to the German word "stumm". Both wordsmean not to say anything. There is no correlation between "dumb" and shtum, as dumb (or dumm in German" has it roots in "not knowing".

The witness remained shtum

shtum by Karl from Oz April 13, 2006

shtum 

Comes from the German word for 'dumb' (incapable of speaking), though it is spelt 'stum' in German. Spelling in English somewhat ambiguous.

"Keep stum or I'll chop your facking balls off sunshine!"

shtum by Billy-Bob McSanchez April 6, 2005

Keep Shtum

shut up; keep quiet

"hey I got a 20 bag in my coat, but keep shtum, i dont want any trouble from the fuzz"

Keep Shtum by ninja_skrtel August 13, 2008

shmumble 

When a retard is shouting but still sounds like a mumble because you can't understand what he's saying

McGiggerNuggets was talking in shmumble.

shmumble by Alexaisastupidnigger June 7, 2016

shrumped

Flaccid from overuse. Shriveled and semi-erect penis, typically due to too much sex.

We fucked like six times last night, until my dick was shrumped. Then I kicked the bitch out.

shrumped by richard vendor October 22, 2012