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A portmanteau of the words Crush and Lust.
A lusht is a lustful crush.

A person who only has an interest in another person in only a lustful way.
"You had better watch out for Robbie, He has a lusht on you"

"If you aren't careful he'll pretend he is crushing on you, but he is only lusting for you.
by The CSM Hazel June 20, 2009
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