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1.
a dick (in hebrew)...slang
Yesh Lo Zayin Gadol! (He has a big Zayin)
by Nudie May 08, 2004
 
2.
1) The seventh letter of the Hebrew alphabet, representing the sound of the letter Z.

2) A penis.
Meaning (2) taken from the shape of the letter referred to in meaning (1).
by LudwigVan February 29, 2004