The act of ejaculating into your own hand and throwing it at another person for sexual gratification.
Janice loves Steve slinking on her tits.
Dave slinked all over his girlfriends face
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The act of inserting a mobile device set to vibrate upon recieving a tweet, into the vagina or rectum in order to cause sexual gratification.
Marjorie to Bernice "Phil twotted the living day lights out of me last night! I ended up squinking all over him'
Emily loves twotting herself silly
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