Used to describe what time your casual fuck friend calls you. Usually, takes place anytime in the late late evening. Typically, the call is only to get booty.
Conversation:
Him: I told you I was going to call you last night?
Her: I know, but by the time you called me at bootycall O'Clock I was passed out.
Him: I told you I was going to call you last night?
Her: I know, but by the time you called me at bootycall O'Clock I was passed out.
by diskowhore May 27, 2008
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