A [[uterus]] whose comically drawn interior is so [[anatomical_nonsense|anatomically incorrect]] it gives the the erroneous impression wombs are shaped like air-filled balloons. Also usually lacks other features like [[ovaries]], [[cervix|cervical neck]] or other [[realistic]] characteristics.

Often associated with [[cervical_penetration|cervical penetration]], [[internal_cumshot|internal cumshots]], [[impregnation]], [[insemination]], [[pregnant|pregnancy]], and [[giving birth]].
balloon womb