slatherphobia 

Fear of the spreading or smearing of sunscreen on ones inner thigh.

I have slatherphobia

slatherphobia by aboy the kid May 21, 2015

splatterphobia

To hold back a fart due to the fear of splattering your underwear with loose stool.

Consuming high fiber products and coffee for breakfast is ill advised due to splatterphobia issues which can occur.

splatterphobia by tcw170 September 19, 2009