the.com/tug

the smallest boat with the audacity to boss around ships a hundred times its size

means To pull something with a short, firm, often repeated effort — or the act of doing so; also a small powerful boat that hauls larger vessels.

from From Middle English 'toggen,' to pull or drag, related to Old English 'teon' (to draw) and a cousin of the Germanic root behind 'tow' and even 'tug' in the sense of harness. The same family stretches back toward the idea of drawing or hauling — so the muscular little harbour boat earned its name honestly, by doing exactly what the word has always meant: pull, and pull again.

raw muscle
Hull crammed almost entirely with engine and torque
pulling power
Can drag tankers weighing hundreds of thousands of tons
flip risk
Towlines can capsize them in seconds, called girting
word origin
From an old root meaning simply to pull
harbor hero
Most big ships can't dock without one
for instance

america's cup match racing — yacht competition where teams literally tug against each other, dating back to 1851

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