1. whump - Noun
2. whump - Verb
(informal) A thumping sound.
(fandom slang) A genre of fan fiction in which a character endures injury, torture, or other forms of physical and mental suffering.
whump (third-person singular simple present whumps, present participle whumping, simple past and past participle whumped)
(informal, transitive) To strike something with a whump.
In recent weeks a number of Early County residents had told of things going "whump, whump, whump" over their homes during the night. Source: Internet