Found in the following dictionaries
OTCWL2014 (NASPA Word List 2014)
"Dogpile" Definition
noun
A mound of people, especially people who are fighting or celebrating.
Source: Wiktionary
Any indiscriminate jumble of things.
Source: Wiktionary
verb
To jump on top of someone, usually in a group.
Source: Wiktionary
To pile on or overwhelm, such as with criticism or praise.
Source: Wiktionary
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