Top definition
When someone fists an ass and opens their hand while inside their partner. To complete the move you must wiggle your fingers around like an octopus, preferably while yelling "let me slide on in there". If desired, the line can be whispered softy instead.
"I gave her a colon-octopi last night and I guess you can say I really slide on in there"
by G.T. Cannington May 31, 2018
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