American to quickly climb up something using your hands and legs
He could shin up a tree faster than any kid I knew.
phraseshin up shin upBrE/shinny upAmE shin/shinny up sth to quickly climb up something such as a tree or a pole, especially by using your hands and legs to pull and push yourself up: It was incredible to see the local people shinning up palm trees with no effort at all.■ SIMILAR TO: climb (up)