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16.
The condom you can't fit in.
'Yer only five inches... this won't work... you can leave, Brett.'

'My arm... it fits in the magnum... that's sick...'
by EddyMiddayMeetsFellony June 05, 2009
 
1.
1) A handgun.
2) A popsicle brand sold in some parts of the world.
3) A brand of condoms- extra large.
4) A nickname for Japanese singer Gackt who once, when asked about his penis, blurted out he is a "magnum" on national TV.
1) He shot his girlfriend with a magnum.
2) I love double caramel magnums but they're so fattening!
3) He is hung like a horse- he only buys magnum condoms.
5) Is that a crease in Gackt's pants or is he just happy to see us?
by shame_shame_shame August 30, 2005
 
2.
.,--^--------,------ -------,----------,---------^--,
.|`|||||||||` `----------'`` ```||========0
.`+---------------------------- -----^-------------|
.``\_,--------,`______________________|
.`. `/ XXxxXX /`|_`.`/
.`.`/ XXxxXX // ` \,`/
.``/ XXxxXX //\____(
.`/ XXxxXX /
./ XXxxXX /
(_______(
.`-------'
"BAM!" screams my magnum as it blows some unsuspecting noob Halo 2 player's head right off!
by SHIBBY-ONE April 16, 2005
 
3.
A really large penis.
Melissa's boyfriend is packin a magnum downstairs, he tears that bitch up every night.
by Syda March 24, 2005
 
4.
An incredibly powerful handgun
Ah ah! I know what you're thinking punk. You're thinking 'did he fire six shots or only five?'. Well, to tell you the truth, I forgot myself in all this excitement. But being as this is a .44 Magnum, the most powerful handgun in the world, and can blow your head clean off, you'd better ask yourself a question. Do I feel lucky? Well? Do ya? Punk!

(Loud gunshot)
by Snake July 18, 2004
 
5.
A round with a greater amount of propellant than a standard cartrige or the wepon that fires this ammunition. Named after the largest size bottle that champagne is sold in (almost 1/2 gal.)
 
6.
Usually a really big condom
You know I need the Magnum for my ish.
by G.O.A.T. November 23, 2004
 
7.
A brand of extra large condoms.
While your at the pharmacy get magnums cuz we dont want another accident. And large didnt fit last time.
by idontgot1 July 13, 2008