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2 definitions by huddaddy

 
1.
Loud and clear. From military erminology. Old radios had two readings. Loudness and clarity rated from 0-5. Thus five by five means literally loud and clear.
How's my signal?

Five by five.
by huddaddy September 10, 2003
 
2.
6
Behind. From aviation terminology where 12 oclock is straight ahead and 6 oclock is behind.
Bandits on my six!
by huddaddy September 10, 2003