When your iPhone's auto-correct replaces the word that you wanted to insert in a text message box with what you were actually unconsciously thinking of.
Bob: I wanna poke you with all my dick.
Bob's GF: Whaaaaaat???!!
Bob: Ughh, stupid auto-correct. Meant to say "I wanna love you with all my heart"!
Bob's GF: iPhreudian Slip? ;)