The other man keeping a wife occupied and happy while her husband is away on business. She stays in the marriage because her emotional needs are fulfilled by the "heavy lifter", and her financial needs are fulfilled by her husband. The "heavy lifter" isn't purely a sex partner, he provides her with her emotional needs as well. The relationship is more than a physical arrangement. Emotions are involved.
Her husband is out of the country for another month; it's time for the heavy lifter to come around.

She feels lonely without her rich husband around. She needs her heavy lifter.

I heard she's been married for so long only because she had a heavy lifter.

A: "Her husband is always away on business. I wonder how she keeps it together?"
B: "I hear she has a heavy lifter keeping her happy while he is away"
by geish March 25, 2014
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