/ ˈbʌksəm; NAmE / adjective
( of a woman ) large in an attractive way, and with large breasts
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WORD ORIGIN
Middle English : from the stem of Old English būgan to bend (of Germanic origin; related to German biegen ) + -some . The original sense was compliant, obliging , later lively and good-tempered , influenced by the traditional association of plumpness and good health with an easy-going nature.