TUCK-UP Meaning of TUCK-UP in English ˈ ̷ ̷ˌ ̷ ̷ noun( -s )Etymology: from tuck up, v.: the sharp upward curve of the underline behind the ribs (as of a greyhound or other dog of racy build) Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012