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3.
The spectacle that is the regalia adorning houses at Christmas.
A compound of Christmas and Chav
It mostly consists of lights and occasionally moving objects, waving santas, reindeer etc.
Mostly seen in the suburbs of Romford such as Gidea Park, Upminster and Chadwell Heath
Look at all those fucking flashing lights, it must be chavmus
by imac hunt February 18, 2005
 
1.
A yearly celebration of the birth of Santa and the dressing of all children in Burberry and drinking of much Thunderbird and Lambrini. It is a wicked time of year, a time for TV and giving bling and blowing your bonus on getting smashed on Wife Beater and getting into a ruck with local scallies. This usually starts in August and finishes in February.
"Merry Chavmas everyone!"

"What you doing for Chavmas Kev?"
"Dunno Barry but I love Chavmas, what you doin for Chavmas?"
"Mostly getting minging, mostly!"
by Badboy Bryson December 15, 2004
 
2.
Pre Christmas period celebrated by Chavs in November.
Usually involves spending your entire job seekers allowance on poundland decorations. Putting your tree up far too early and putting trampy lights all over the front of your house.
I see it's the 26th November and Anna has her Christmas Tree up...
Yes, she celebrating Chavmas
by Slickers74 November 21, 2010