Combination of "insecurity" and the "beep" of your car horn. An "insecuribeep" occurs when you are walking away from your car and you get that sudden feeling of insecurity due to the uncertainty as to whether or not you locked your car doors. So you press the lock button on your infrared key ring three times fast, which forces your car to make the more audible car horn "beep," thus setting your mind at ease.
Freudian theory of psychoanalysis suggests that a feeling of insecuribeep comes from the sadness associated with a low crunchberry to Cap'n crunch ratio in your cereal bowl.
by Ae5Ea8 February 10, 2015