A muslim that lays low and only surfaces when it is convenient to be muslim.

Submarine Muslim can also be easily confused with a terrorist sleeper cell. However this is not usually the case.
Farhat is a submarine muslim. He's only muslim when it's cool to be muslim.
by Spanky 69 October 19, 2005
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A Muslim who converts to or practices Islam without revealing their conversion or Islamic faith. They practice Islam in secret - sometimes not even telling their own family members. Reasons for this behaviour includes not wanting to be discriminated against; avoiding the drama associated with Islam's stance on homosexuality / Palestine etc; avoiding fallout issues with family members and friends.
Joe is a submarine Muslim, you won't see him wearing a thobe
by Moderately Concerned June 20, 2023
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