Definitions for "Freudian Slip"
a slip-up that (according to Sigmund Freud) results from the operation of unconscious wishes or conflicts and can reveal unconscious processes in normal healthy individuals
an article of lingerie accidentally mailed to one's mother
an inadvertent remark, often a mispronunciation of a single word, which is thought (usually jocularly) to reveal what one really thinks, feels or is, as distinct from how one would like to appear
Shitting in your pants while farting. Farting is what you are doing, but shitting is your subconscious wants.