Simple Definition:

Libido refers to a person’s sexual drive or desire (the feeling of wanting to have sex). It is the natural instinct that motivates individuals to engage in sexual activities. For instance, when someone feels a strong desire to be intimate with another person or experiences sexual fantasies, it can be attributed to their libido.

Very Simple Definition:

Libido is the feeling of wanting to have sex. It is the natural instinct that makes people want to be intimate with someone else. For example, when someone really wants to be close to someone or thinks about having sex, that’s their libido.