to talk about or plan on doing some activity with others whithout going through with it; especially if this hapens at the last moment.
Example 1:

John: Carmela keeps saying she wants to go for dinner with me, but then she always rainchecks last minute.

James: Man, you shouldn't take that shit. She farts without shitting, man!

Example 2:

Bob: Jim said was gonna come along tonight, but then he totally ditched us yet again! That is to fart without shitting, man!
by Berlusconi_i_miei_coglion December 3, 2010
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