ETO

An abbriviation for the European Theatre of Operations, which was part of World War II.

That veteran over there fought as a mortarman in the ETO during Word War II.

by Operation Detachment July 26, 2010

ETO

Estimated Time of Online-ness

Shit, your website went down, any ETO?

When's the ETO?

by Danny S November 25, 2005

Eto

The calmest person you'll ever meet. They can be shy at first but once you get to know them they're really out going. They know how to make you feel better with their jokes and hilarious personality. Sometimes though they pretend not to care deep down they're hurting. Never hurt an Eto
Every one needs Eto in their life

Have you seen the new girl
Yeah seems like an Eto to me

by Rowan joe August 16, 2019

ETOS

Estimated Time of Sleep. Used to indicate when you're planning on going to sleep.

Friend 1: I've got a bunch of homework. ETOS is 1 am. What's yours?
Friend 2: RIGHT NOW! No homework for me!

by DaHacker12 November 2, 2011

Etos

Estimated Time Of Sleep

1: Hey man, what homework do you have to do tonight?
2: FUCKFUCKFUCK I HAVE TO DO MY ENGLISH PAPER!!
1: Etos?
2: 5 am, fuck my life.

by Oliver Li April 3, 2008

Eto

When you are embarrassed or are thinking.

S-senpai > / / / <
Etooooo...
Ore wa...
Honto ni...
AISHITERU.

by Huustla December 9, 2018

Eto

Eto:

Sounds like an Asian name rhyming with "neato". Intellectual yet fun, unfiltered, strong, adaptable, and a penchant for the erotic. Also possessing the ability to make light in almost any situation.

Man that guy went full Eto at the funeral making everyone laugh.

by Etod July 12, 2014