Top Definition
An act of foreplay or a signal to initiate intercourse wherein one party initiates the act while the other just kinda lays there.
"Dude, I tried to pick up some chicks at Da Club last night, but I didn't get any secs."

"Bro, don't tell me you started one sided dry humping."

See also My Ex-Girlfriend and Douchebags At Nightclubs.
by Emay October 14, 2013

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