( v. t. )
To soil or wear with the thumb or the fingers; to soil, or wear out, by frequent handling; also, to cover with the thumb; as, to thumb the touch-hole of a cannon.
( v. t. )
To soil or wear with the thumb or the fingers; to soil, or wear out, by frequent handling; also, to cover with the thumb; as, to thumb the touch-hole of a cannon.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012