A hockey goalie who allows many goals to be scored by the other team, causing his team own team to lose the game.
Cornell beat Harvard in yesterday's hockey game because their sieve allowed five goals.
by Justin March 29, 2004
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1. Sieve
Any goalie that allows many goals to be scored by an opposing team, thus causing his team own team to lose the game.

Although team St. Amour’s offence was rather weak, it was ultimately their sieve like goaltender that allowed the opposing team to show them "Who's Boss"
Although team St. Amour’s offence was rather weak, it was ultimately their sieve like goaltender that allowed the opposing team to show them "Who's Boss"
by R June 17, 2005
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a goalie that allows many goals causing his team to lose the hockey game
collin evans was the biggest sieve bow high has ever seen.
by kljgyturyjl;als May 9, 2008
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a wire mesh or perforated metal utensil used for straining or sifting.

is very commonly used metaphorically to describe things that are leaking or something that has holes in it.
1) leaks like a sieve
2) bad defense in sports (i.e. poor goalie in hockey)
1) The pipes are leaking like a sieve. The plumber must have done a crappy job.

2) That goalie sucks. He is about as porous as a sieve
by Joe Sausage July 1, 2005
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A sieve is:

1. A hockey goalie that cannot stop a shot
2. Someone who cannot hold their liqour
3. Anyone who acts in a bitch-like mannor, similar to a tool
by Scruff MacGruff June 1, 2010
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A goalie who allows a lot of goals, enjoys seeing other teams score and watching other teams win, and acts in an overall tool-like manner. They may also hide in their nets to avoid the opposing team's student section.
When he's not clotheslining the opposing team's players or getting kicked out of the game, SHunwick enjoys being a dirty sieve and acting like a tool.
by U_mad_bro? December 5, 2011
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A sieve is someone who cannot control their urge to pass on other peoples stories or secrets, often exaggerating or taking anecdotes out of context; aiming to humiliate .

Verb: to sieve, (sieving, sieved)
1. "Ok, I'll tell you, but don't sieve this to anyone"

2. "My secret would've been safe, if it wasn't for that sieve"

3. Willy the Sieve
by Francis Hunt OG January 15, 2008
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