Loose vs. Lose :)

You "LOSE" weight

Your pants are "LOOSE"
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LOSE /luz/ Show Spelled [looz] Show IPA verb, lost, los·ing.
verb (used with object)
1. to come to be without (something in one's possession or care), through accident, theft, etc., so that there is little or no prospect of recovery: I'm sure I've merely misplaced my hat, not lost it.
2. to fail inadvertently to retain (something) in such a way that it cannot be immediately recovered: I just lost a dime under this sofa.
3. to suffer the deprivation of: to lose one's job; to lose one's life.
4. to be bereaved of by death: to lose a sister.
5. to fail to keep, preserve, or maintain: to lose one's balance; to lose one's figure.
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LOOSE    /lus/ Show Spelled [loos] Show IPA adjective, loos·er, loos·est, adverb, verb loosed, loos·ing.
adjective
1. free or released from fastening or attachment: a loose end.
2. free from anything that binds or restrains; unfettered: loose cats prowling around in alleyways at night.
3. uncombined, as a chemical element.
4. not bound together: to wear one's hair loose.
5. not put up in a package or other container: loose mushrooms.