Unconscious thoughts and feelings can transfer to the conscious mind in the form of parapraxes, popularly known as “Freudian slips” or slips of the tongue. We reveal what is really on our mind by saying something we didn’t mean to.
For example, a nutritionist giving a lecture intended to say “We should always demand the best in bread”, but instead said “bed”. Another example is where a person may call a friend’s new partner by the name of a previous one, whom we liked better.
Freud believed that slips of the tongue provided an insight into the unconscious mind and that there were no accidents, every behavior (including slips of the tongue) was significant (i.e. all behavior is determined). (© Saul McLeod, Simply Psychology) simplypsychology.org