A member of the Bigfoot genus, the Gwumpalump is a hairy biped creature with a human-like appearance. Since the decline of the Gwumpalump population, however, the term has taken on a pejorative meaning. It is now most often used in reference to someone who is simultaneously extremely grumpy and extremely lumpy .
The Adjective form of Gwumpalump is Gwumpy .
"The last time I encountered a Gwumpalump, I was at Rock City, TN."
"Man, did you see Timmy at the party last weekend?" "Yeah, bro! He was so grumpy and lumpy that he appeared to be a Gwumpalump!"
"Don't be such a Gwumpalump, Carl." "Rock City was definitely a good value!"
The act of getting fucked by 4 or greater midgets none exceeeding 5 feet tall. whom are also dressed in suspenders have green dyed hair and have a shitty spray tan. (Snookie is one of these such creatures). for this to qualify as a Umpalumpa Gang-bang. there must also be an emo man watching you with a very emo haircut telling the umpalumpas they aren't slaves mmmmm chocolate. for further optional aspects of this act please see chocolate Umpalumpa gangbang.
Person 1: hey baby up for an Umpalumpa Gangbang?
Person 2: okay but we need four more people.
an noun used to describe someone as a short fat person. it can also mean they wear a lot of makeup therefore looking like an umpalumpa. In addition it can mean your penis.
I wouldn't go in the bathroom, I just took a dumpalumpagus, and it smells like a prehistoric swamp in there. I swear, I think I saw a pterodactyl circling the toilet.