It means bullshit but it's much more intense. So before using it, make sure you know your audiences tolerance. The intensity is same as the word f..k.
by AghaMaziar February 14, 2008
Get the kosshermug. 
Get the kosshermug. 1.a sentence that its purpose is to make people laugh(see ex 1)
2.something that is not true(see ex 2)
3.a sentence that is used to make fun of somebody(see ex 3)
2.something that is not true(see ex 2)
3.a sentence that is used to make fun of somebody(see ex 3)
1.Sina is really funny, he says kossher 24/7 non-stop.
2.Sina says he's a college student, but he's saying kossher.
3.Sina is so rude, he keeps saying kossher when somebody is talking.
2.Sina says he's a college student, but he's saying kossher.
3.Sina is so rude, he keeps saying kossher when somebody is talking.
by Sina August 27, 2004
Get the kosshermug. 
by kaveh October 30, 2003
Get the kosshermug. by Koskhol Oghli September 25, 2003
Get the kosshermug.