Sexual symbolism refers to the use of symbols or objects that represent or suggest sexuality or sexual desires. It is a way of expressing or representing sexual or sensual themes indirectly through images, motifs, or metaphors. Full definition
So all of these structure stress sexual symbolism in one way or another. (actionboysbelize.com)
Freudian authors find disguised sexual symbolism and forgotten childhood experiences (e.g., incestual desires or hatred of father or mother) behind every myth.24 (religion-online.org)
Using the subject of sex as an example, when an English professor would discuss sexual symbolism in various literature, they tended to giggle uncontrollably. (phdinparenting.com)