Need help from native speakers translating a Moroccan Darija phrase/proverb

Need help from native speakers translating a Moroccan Darija phrase/proverb (flirtatious context?)
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Hi everyone, I need some honest, objective help from native Darija speakers to understand the exact cultural meaning and subtext of a specific phrase.
A woman sent a series of late-night WhatsApp notifications to a guy's phone at 2:00 AM. One of the messages says:
"Rah ghayklha ghir dod" (راه غياكلها غير الدود)
Right next to it, she also sent: "Galik lit3rfo hsn mn limat3rfoch" and "Lahoma fik nta niit".
I know the literal translation involves "only worms will eat it," but what does this phrase mean metaphorically or idiomatically when sent in a late-night text between a man and a woman? Is it a standard platonic joke, or does it carry a deeper, flirtatious, or suggestive meaning?
Thank you so much for your help, I really appreciate it.