A shaped piece of metal, threaded by a wire loop, which is jammed in a crack in the rockface and used to protect a climb. (Originally, machine nuts [sense #2] were used for this purpose.)
Monthly expense to keep a venture running.
Any of various hard-shelled seeds or hard, dry fruits from various families of plants.
A projection on each side of the shank of an anchor, to secure the stock in place.
An extreme enthusiast.
The head.
A piece of hardware, typically metal and typically hexagonal or square in shape, with a hole through it having internal screw threads, intended to be screwed onto a threaded bolt or other threaded shaft.
On stringed instruments such as guitars and violins, the small piece at the peghead end of the fingerboard that holds the strings at the proper spacing and, in most cases, the proper height.
Orgasm, ejaculation; especially release of semen.
The tumbler of a gunlock.
Such a fruit that is indehiscent.
A testicle.
En, a unit of measurement equal to half of the height of the type in use.
A crazy person.
Semen, ejaculate.
The best possible hand of a certain type, for instance: "nut straight", "nut flush", and "nut full house". Compare nuts (“the best possible hand available”).
The amount of money necessary to set up some venture; set-up costs.
A stash of money owned by an extremely rich investor, sufficient to sustain a high level of consumption if all other money is lost.
No.
To hit deliberately with the head; to headbutt.
To gather nuts.
To hit in the testicles.
To orgasm; to ejaculate.
To defeat thoroughly.
A box filled with sand that is shaped to form a mould for metal casting.
An animal's litter box.
A container for sand or pounce, used historically before blotting paper.
The Middle East.
A children's play area consisting of a box filled with sand.
A page on a wiki where users are free to experiment without destroying or damaging any legitimate content.
A box carried on locomotives, from which sand runs onto the rails in front of the driving wheels, to prevent slipping.
An isolated area where a program can be executed with a restricted portion of the resources available.
To restrict (a program, etc.) by placing it in a sandbox.