The action of looking from side to side, replicating a lighthouse. This occurs when one is being spoken to and they are attempting to locate a more interesting person to speak to elsewhere in the room while appearing to be listening to the person they are talking to.
I was trying to speak to cheryl last night but she wouldn't stop lighthousing which thoroughly put me off

Gerald was giving me another one of his lectures last night but as i started lighthousing he got the message and moved on
by Fotes April 18, 2010
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Sean's favourite poker term. The act of staying in a two-pair hand in hopes of hitting a full house.
Sean didn't love his 7-deuce until the board flopped 7-2-5. He held firm to Mike's bet and Eyeball's call, lighthousing like a motherfucker.
by happywookie February 20, 2021
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As opposed to "Gaslighting" it is the art of shining through the fog of deception, focusing upon the TRUTH of what is taking place.
She was lighthousing through his web of deceit and saw the truth of the matter.
by Fàilte March 16, 2017
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To spray shit laterally on the vertical walls of a toilet stall. Note: Typically of a diarrhea-like consistency.
Buddy Lou was rushing to pull his pants down so fast as he entered the shitter after first noticing strong pangs of diarrhea, locked the stall door behind him, but 0h n03s he accidentally lighthoused it with a mighty colon blow.
by Dahveed October 6, 2005
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When one feels the need or requirement to expel Jizz from ones cock whilst lying in a bath with just the shaft and tip of your jolly roger visible through the sea of bubbles

Lighthousing in a stormy sea -
As above by using increased ferocity to achieve the end goal of filling the sea with more goo than the piper alpha oil disaster
Have you been doing some Lighthousing in the bath dad? The waters full of jizz! i’m supposed to going in the bath now using same water to save money and the planet ya bloody porvort
by cannydaft May 7, 2021
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This phenomenon occurs when one is defecating in an unclean and/or unsafe environment, and does not wish to make physical contact with the toilet seat. As a result, the person performs the squat maneuver. This accomplishes two things: first, the point of exit for the stool is at a considerably higher elevation, resulting in a high entry velocity. Second, as a result of the pivot point being above the feet, the point of exit is further forward in relation to the bowl. This point of release may be so far forward such that there is no (or shallow) water directly above the asshole. If the consistency of the crap is just right, it will land and stick, remaining in an upright position. If the center of mass is directly above the area spanned by the base, the log will be in metastable static equilibrium, and will not fall down. This is commonly known as the lighthouse effect.

Note: the lighthouse is said to have weathered the storm if it remains even after the ensuing flush, such that there is no toilet paper or urine detracting from the natural beauty of the phenomenon.
-Dude, I just left a lighthouse in that bathroom!!

-Nice! Did it weather the storm?

-Yea! Come check it out!
by flapdoodle13 April 23, 2010
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A lighthouse is when you're lying on your back making sweet love to a black chick and you start to rotate her on that huge shaft of yours with her eyes closed - every time she makes a full revolution on that throbbing thing of yours she opens her eyes and mouth shining the way to ecstacy.
person 1: yo daawwwgg how was dat shortie last night????

person 2: mmaaaannn i lighthouse'd the shit out of dat...DDDAAAMNNNN
by Philjo_ October 5, 2012
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