From Longman Dictionary of Contemporary Englishclamberclam‧ber /ˈklæmbə $ -ər/ verb [intransitive always + adverb/preposition] CLIMBto climb or move slowly somewhere, using your hands and feet because it is difficult or steepclamber over/across etc They clambered over the slippery rocks. We all clambered aboard and the boat pulled out.→ See Verb table
Examples from the Corpus
clamber• At last we saw the two girls clambering down the slope to safety.• Fonti clambered inside the mock-up to have a look.• He staggered as I clambered on, but stayed upright.• He fills it with a restless, bristling energy, as if he might clamber out of the frame and into real life.• She clambered over the mossy wall at the bottom of the garden and edged round a shed.• Some clambered to the roof of the Administration Building to watch.• Hundreds of people clambered to the roof of the building to watch the fire spread.• Those in front clambered up on to the grates that covered the entrance.• He clambered up the bank to the top where the trees ended.• All of the Debenham pupils clamber up the stairs leaving the Stonham pupils downstairs.clamber over/across etc• He clambered over a bench, vaulted over a nestle of children on the ground, and failed to dodge a pie-seller.• Pinsent clambered over Foster to embrace Redgrave, and then fell in the water.• She worked her way round the obstruction, clambering over general debris as she went.• Stephen went back across the river again, clambering over the boulders.• She clambered over the mossy wall at the bottom of the garden and edged round a shed.• Swiftly, Ace clambered over the red-stained sandbags, and checked the door.• Now his lifesize copies of himself can be seen clambering over the school buildings.• She clambered over the side of the last truck and crouched down out of sight.Origin clamber (1300-1400) Perhaps from clamb, old past tense of climb 