c-dep is short for contraception-deception. This is when a female tells a man that she has taken the pill when in fact she has not, and is looking to impregnate herself.
Female: I told bae I took the pill when I didn't
Friend: OMG, you totally c-depped him

Male: Dude, she told me she is pregnant 7 months into her pregnancy.
Friend: Wait, she didn't tell you till 7 months in??
Male: She said she took the pill
Friends: She totally c-depped you!!
by BettyHose December 7, 2016
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