Spikfin 

Used as a code word to get someone to shut up immediately.

Similar to 'muskrat' in 'Meet the Fockers'.

*At best friends engagement. Man, is slightly drunk and trying to remind his friend about all the girls he had sex with at college in front of his future inlaws, man's girlfriend steps in*

Man 1 -"So, so, so Paul after Mia came Gemma, no wait that was after Karen... or was it Isobel..."

Girlfriend - *whispers* "spikfin"

**SILENCE**

Spikfin by Sa'Belle August 29, 2010

The Spiffing Brit 

The most British channel on YouTube. 100% Yorkshire Tea certified. Also the CEO of SpiffCo, which has conquered many lands. There is no exploit he cannot find.

One day the Spiffing Brit is going to find the exploit to real life.

The Spiffing Brit by Doctor J October 13, 2020

drink spiking 

Drink spiking is the illegal act of placing a substance into a drink with the intention of causing harm to the drinker.
( www.wisegeek.com/what-is-drink-spiking.htm )

Police have arrested a 29-year-old Swedish tourist in Nelson in connection to an investigation into suspected mass drink spiking at a Napier bar.

drink spiking by anttiR December 10, 2010

Spiffing Mammaries 

Harry Styles favorite things. (FUN BAGS)

Louis: WOAH! look at those nice fun bags
Harry: SPIFFING MAMMARIES!

Spiffing Mammaries by Niall Horan February 16, 2012

SPIFFING 

Very posh and dated word meaning excellent, especially as used by upper-class toffs and rugger buggers.

I say, she's a lovely filly.
Oh yes, absolutely spiffing old chap.

SPIFFING by onandon August 28, 2005

Spiffing 

For something to be excellent or good. Word is mainly used by upper-class British

I say Grayson, that back-scratched you purchased for me the other day is rather spiffing.

Spiffing by Superduperpooperscooper123123 January 8, 2010

spiffing 

lovely, desirable, super
retro term - ganking

We're having such a spiffing time
He's a spiffing bloke

spiffing by Catherine September 30, 2003