The term "trophy wife" generally refers to a successful, powerful businessman's second or third wife who is beautiful, educated, successful, and younger than her husband.
A "trophy wife" is considered a status symbol.
"Trophy wife" reportedly was first used by Fortune magazine in 1989.
Also Known As: Gold digger, boy toy, power bride
"Our romantic ideals are always grounded in economic realities, from the Victorian marriage model to the 1980s masters of the universe for whom a standard-issue trophy wife was a badge of honor."
Source: Deborah Siegel. "The New Trophy Wife."
PsychologyToday.com. Jan/Feb 2004.