Wiktionary
gross out
n. (context sometimes hyphenated especially when used attributively English) Something which sickens, causes distress, or appalls by reason of being disgusting, gory, or repulsive. vb. (context transitive English) To sicken or distress (someone) by being disgusting, gory, or appalling.
WordNet
Wikipedia
Gross out
Gross out describes a movement in art (often comic), which aims to shock and disgust the audience with controversial material such as toilet humour, nudity, or any sexual topic.