What is Newb Tube?
1.
Grenade launcher, found in Call of Duty 4: Modern Warfare
"That kid just shot me with his newb tube!"
See
2.
A granade launcher in Call Of Duty 4 and WAW. Which takes no skill to use so people that are new to the game or just not good at it use.
That newb shot me with his newb tube
See