0.5

a fart, lighter than a piss (which is a 1) and a dump (a 2)

damn bro, just dropped a 0.5

by sizzlezbboy November 1, 2010

0.5

Seeing a girls bra strap or slight bit of underwear

Dude1: woah, look at that bra strap!
Dude 2 : Oh man, you just got to 0.5 base

by DeviousLaughter August 6, 2015

0.5 on the sides

A haircut that has been done nicely, only a group of metes can be part of this clan.

I got that 0.5 on the sides

by Harrynicely January 12, 2014

a laugh and a 0.5

Internet/IM speak for a laugh and a half, meaning something is mildly amusing. Substitute for a higher fractional number if the situation calls for it (i.e. a laugh and a 0.7).

Person 1: Did you see yesterday's episode of The Daily Show? It really was a laugh and a 0.5.

Person 2 appears to be offline.

by Anouska DS October 21, 2008

Rule 0.5

A rule of table top gaming. If the DM/GM is being an Ass/dumbass/idiot and/or abusing rule 0, the players can choose to override him by leaving his game and starting their own.
An alternate version involves Smacking the DM over the head with the Dungeon Master's Guide.

DM: The ghoul rolled a 28 On his check to resist your Trip attempt.
Player: How the Hell does a ghoul get a 28?
Dm: With His +8 grapple modifier.
Player: But it is a Strength check, not a grapple!!
DM: I am the DM, Under Rule 0 I say He uses his Grapple Modifier.
This is where Rule 0.5 Is invoked
Every player at table: Smacks DM upside head with books and Leaves game.

by Eldrich Thurge January 30, 2009

0.5 inch

A micro-penis but still bigger than most womens

Man:"i have a 0.5 inch penis and i feel anxious" therapist:"well, it seems like you have a micro-penis, but hey its bigger than womens... For now there is a definition on UD if you need to know the same thing i said".

by Something- May 10, 2021

tier 0.5

The Tier 0.5 quest is a long ass quest line for shitty gear in the game World of Warcraft. It is an exceptionally time consuming, in some cases difficult, and costly chain that involves a 45 min. UD strat run halfway through, not to mention close to 300g in expenses (if your lucky).

Note:(I understand most of this is the writers views and not necessarily facts. Sorry if my oppinions offend anyone)

1. XnewbX: Hey guys, I have one more part to do for my tier 0.5 quest!!
Koruptwon: Quit while your ahead...
2. Yes! I just got my Sorcerer's mantle from my tier 0.5 quest! Oh, wtf my backup gear is better than this shit..
3. Damn.. that tier 0.5 quest line was a huge waste.. Now I want to skull fuck someone in the asshole

by Koruptwon August 9, 2006