look up any word, like thot:
 
3.
c7
A radio transmission in Counter-Strike, meaning:

Get out of there, it's gonna blow!

but said in normal life
c7, c7!!! wtf?
by Lorne Richardson July 06, 2003
 
1.
C7
The C7, made by Diemaco, is the Canadian Forces version of the M16. The C7 also has a fully automatic mode unlike the M16 which is limited to burst modes.
American Sargent "Switch to F/A boys! We're storming the building!"
American Troop "But Sarge, we don't have that mode anymore."
American Sargent "Well ya should have knocked out one of Canucks and taken their C7 eh?!"
by Narcissus July 13, 2004
 
2.
C7
The canadian version of the M16, also used in other UN countries. The C7A1 has a 3.2X scope instead of iron sights. it uses the 5.56 nato round.
"the c7 is an assault rifle used in many militaries around the world."
by g0207 June 12, 2003