Fording is crossing a river or stream on foot where there is no bridge. Hikers face upstream or angle across, unclip the pack hip belt, use trekking poles for stability, and judge depth and current carefully. Swift water is deceptively powerful, making fords one of backpacking's real hazards.
A dead hang is hanging from a hold, bar, or hangboard edge with straight, relaxed arms and engaged shoulders, used both as a rest position on the wall and as a core finger-strength exercise. Timed dead hangs on a hangboard are one of the most effective ways to build the specific finger strength climbing demands.
A knee bar is a resting and locking technique where you wedge your leg between two opposing surfaces — jamming the knee or thigh against one and the foot against the other — so the leg supports your weight and frees your hands. A good knee bar can offer a precious no-hands rest on steep terrain.
A whipper is climbing slang for a big, dramatic lead fall — a long, often swinging plunge taken when leading above your protection. Whippers are a normal part of pushing your limit on safe, well-protected sport routes, where the dynamic rope and an attentive belayer turn them into a relatively harmless, if thrilling, experience.
Barn-dooring is when a climber's body swings uncontrollably away from the wall like a door on a hinge, because their weight isn't balanced over their points of contact. It typically happens when the useful holds are all on one side of the body, and is corrected with techniques like flagging to counterbalance.
Being 'pumped' is the burning, swollen feeling in the forearms when they fatigue from gripping, as metabolic by-products and blood build up faster than they clear. A pumped climber loses grip strength and may be unable to hold on, so managing the pump — through rests, efficient movement, and shaking out — is central to endurance climbing.
A lock-off is a technique where you pull a hold in toward your body and hold your bent arm in a static, locked position, freeing the other hand to reach the next hold. Locking off requires pulling strength and good body position, and lets climbers make controlled, static moves instead of dynamic ones.
A deadpoint is a controlled dynamic move where you reach a far hold at the brief, weightless apex of an upward motion — the point where you are momentarily neither rising nor falling. Unlike a full dyno, you keep at least one hand and your feet on the wall, making it a precise, efficient way to gain distance.
Stemming, also called bridging, is a technique where you press outward with opposing limbs against two surfaces — typically the two walls of a corner or chimney — using counter-pressure to stay in place without positive holds. It can be strenuous or restful, and lets climbers ascend dihedrals and wide features with little to grip.
A finger lock is a crack-climbing technique where you slot your fingers into a thin crack and twist or torque them so they lock against the walls. Used in cracks too narrow for a hand jam, finger locks can feel surprisingly secure once trusted, but are strenuous on the fingers and take practice to use well.