Dipthong 

word meaning you are a dumbass, or have been exhibiting some dumbass behavior

You're a dipthong!

Dipthong by Granolaa July 12, 2010

Dipthong 

Apart from being a FANTASTIC word, this means when you have more than one vowel on a single syllable.
Although, it is much more entertaining to come up with your own definition.

Person 1: Hey, did you realise the word 'computer' has a dipthong in it?
Person 2: no
Person 1: com-p-ee-oo-ter.
Person 2: great, fuck off

Dipthong by Madman6556 October 20, 2014

dipthong 

a person acting retarted

your such a dipthong

dipthong by yeehaw! April 23, 2004

Dipthong 

1. The vagina flap of a black women
2. A total idiot, 98% of these idiots are black

Shaniqua has such a flabby dipthong, you can see it through her pants.

Jackson: DeAndre, you are such a fucking dipthong
DeAndre: what's that?
Jackson: my point exactly...idiot

Dipthong by jswags November 16, 2011

dipthong 

A smoking cessation method where a young lady places a handful of Skoal in her panties.

I’m happy for Jane, she hasn’t smoked once since starting the dipthong plan and her skidmarks smell like mint.

dipthong by bishopsumo February 16, 2007

Dipthong 

The ugly ‘eee’ sound when singing a word ending in Y

Choir: *singing* On short day-eeee
Dylan: dipthong!

Dipthong by I am hajime hinata February 21, 2020

Dipthong 

When a male takes a female's underwear, dips it in melted chocolate and/or strawberry syrup and eats it.

Dipthongs are disgusting.

Dipthong by Jun-Jun the Spoon December 1, 2006