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The act of flexing your face muscles when a projectile is approaching the gravitational pull of your face
She was juggling the remotes and I couldn't help but flace because she basically threw It at me, Its okay though she caught it.

She pretend to helping, then she stop and laughing at me cause I was flacing in a funny way
by Rotten_Pancakes August 25, 2011
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The result of a man ejaculating on a woman's face above the eyebrow and semen dripping down, making a lace-like structure. face semen lace ejaculation
Rebecca got flacing on her when she had a rendezvous with Bill.
by Dr. Wolfdick August 20, 2016
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Ejaculating on to a woman's face just above the eyebrow so that semen drips down and makes a lace like structure on her face.
Rebecca likes Harry but isn't too fond of flacing because it ruins her makeup.
by Dr. Wolfdick August 22, 2016
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