bomber
Rock climbing term for reliable holds, used on job sites
In rock climbing, a hold that is really big or deep or otherwise so good that it is "bomb-proof". Can also be used of equipment that is so good as to be infalliable.
"I was climbing She Don't Use Jelly (5.10a), and I about decked five times before I got to that bomber jug on the second pitch."
Also in the dictionary
- bomber in manufacturing