Monthly Usage Meter -
A program that shows how much one has downloaded and how much download limit one has left.
Usually includes total download limit (for your respective plan with your ISP), total downloaded within the billing period, how many MB/day can be used without going over the limit and how many days are remaining in the billing period.

Most feature a bar which graphically shows the percentage of download allowance one has used to date, and a marker to show where one's bar should be to ensure sustainable downloading without going over the limit.

If one's ISP charges for extra data, some MUMs calculate how much extra will be charged to date.
1. This torrent is very large, I'll consult my MUM to see if I have enough data allowance left to download it.
2. My connection is going rather slow, I wonder if I've been shaped. I'd better check my MUM to see if I've gone over my download limit.
3. My download limit/month is 15GB. That allows 500MB/day of usage. It is now the 3rd day of my billing period, so the marker on my MUM is at the 1.5GB mark. I have downloaded 2GB so far, so the bar on my MUM has passed the maker.
4. The bar on my MUM is way past the marker. Perhaps I should stop downloading for a little while, to allow the marker to catch up.
by kako October 15, 2005
an outstanding and original musical artist from Iceland. Nonetheless, their music reaches new heights of weirdness, which even I find to be a little awkward. Still, their music is extremely well done and very much worthy of attention.
Mum also means "Mom" in Icelandic
by Christopher Powell May 02, 2004
Something dumb ass British people say because they have a dick in their mouth.
Sorry for blowing dad, mum.
by B-Tribble September 02, 2010
a silly cunt.reffered to when you want to sound cool. and hard.
no mum, i'm not coming home for my fucking tea. you can eat it your fucking self.
by MDB - million dollar babe. April 12, 2005
The way Europeans/Australians call their mother instead of "mom"
I rather call my mom "mommy" then "mummy" because my mother isn't a corpse wrapped in bandages.
by Bobby De Niro August 04, 2004
An Australian word meaning "mom"
Australian: My mum won't let me go.
Yank: My mom won't let me go either.
by Ette July 11, 2003
What british people say instead of mom. Some people who say it are stuck up assholes who think Americans pronounce it wrong, but what we've actually done is perfect the language to what makes more sense, just like they invented muskets, but we've perfected them into high-tech guns.
british asshole: Hi mum, we're better than those Americans that say "mom".

American: Those stuck-up british fuckers can talk all the shit they want because they know and we know that they're just a bunch of pussies anyway.
by Nor_Cal_Jack October 24, 2005

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