Genitals, private parts and excited tennis players - and others. Is there an explanation for this?

INDIAN WELLS, CA - MARCH 17: Bianca Andreescu of Canada celebrates her women's singles final victory against Angelique Kerber of Germany on day fourteen of the BNP Paribas Open at the Indian Wells Tennis Garden on March 17, 2019 in Indian Wells, California. (Photo by Kevork Djansezian/Getty Images)