underboep 

noun
Meaning belly hanging out from under a shirt.
Often seen on African and American men and, in even more upsetting cases, women. Think people of Wal-Mart.
The origin of "boep" (pronounced like "boop" but with a short "oo" as in "look") is from Afrikaans, a language related to Dutch, spoken in Southern Africa; meaning belly, like in beer belly. In South Africa, Afrikaans has been influenced by the multicultural population and thus this collision of languages provided an opportunity for a neologism, albeit under unfortunate circumstances.
Underboep is thus related to underboob, but not nearly as appealing.
See also underbelly, def.2

Check that fat fuck's underboep! Eeeeuuuwww!!

underboep by A.C. Kermann June 11, 2018

Underboss 

Member of a mafia family, typically directly underneath the Don. Handles the mundane details of running a crime family.

The underboss put the capo in charge of making sure the hit was carried out.

Underboss by Roberto Manchez December 29, 2004

underhopped 

is the condition that results from taking an unbalanced diet in which certain nutrients are lacking. Specific for this condition is the lack of hops in your daily food intake.
Depending on the amount of hops that is missing in your body this condition may result in normal body balance and muscle coordination, normal speech, normal behaviour and seriousness.

The World Health Organization cites malnutrition as the greatest single threat to the world's public health. Improving nutrition is widely regarded as the most effective form of aid.

The opposite is overhopped.

I feel underhopped. Please hand me a beer!

The party yesterday was dull. I've been severly underhopped.

underhopped by theMittler October 15, 2012

underbeneath

The practice of sporting your collar tucked in, typically in crime-riddled urban areas. The polar opposite of the collar pop. Made popular by Atlanta rappers "Tha THC Boyz" (They*Hidin*Collaz.)

Damn, son...You wanna get shot?! You better tuck that collar underbeneath!!!

underbeneath by Loloforeal June 12, 2007

underboob 

cleavage visible from the part of the shirt that covers the bottom of the female breasts

If that is not a deliberate underboob, I don't know what is.

underboob by The Return of Light Joker March 20, 2009

underbreastimate 

to underestimate the size and/or weight of ones breasts.

be careful not to underbreastimate a women's tits; they are known to suffocate small animals and children!

underbreastimate by Matt Huff October 6, 2011

underboobage 

The southern hemisphere of a woman's breasts, as often displayed to the delight of virile men.

I love to see the underboobage of buxom females playing volleyball in the sand, especially whilst wearing all-too-short crop tops. Oh yeah, neathage!

underboobage by noahb555 September 10, 2010