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To use social media for the purpose of attracting potential mates while still in a relationship through the use of scandalous photos.

Similar to how a pilot light remains ready to ignite the furnace at all times.
Dude, did you see that chicks Instagram, she’s totally pilot lighting her boyfriend.
by Speakyourtruth December 16, 2018
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2
Refers to "pilot controlled lighting," often available at uncontrolled airfields and useful after dark, or under instrument conditions.
If you land at Treasure Coast International Airport after 0200z, click the mic five times to put the pilot lighting at medium intensity, so you can see the runway.
by Derek Dogan December 21, 2018
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