Ditto

[Sarah]

it seems nobody got the real source yet:
Ditto comes from Latin, and means about as has been said before. So most of the other explanations are correct.

[Jessica]

ditto mark: a mark used to indicate the word above it should be repeated
repeat an action or statement; The next speaker dittoed her argument.

The word ditto is commonly used as a way of saying me too, or I agree.

[Britney]

Used when you want to say the same thing in return to someone, but you cant be arsed to type the full thing. Means same here pretty much.

[Sarah]

Worst word in the english language. It is the laziest word, it is just an excuse not to respond properly.

[Tina]

A pokemon created for all other pokemon to have pleasure and sex by transforming.

[Rihanna]

Also, or the same

A purple/pink transform Pokemon that looks like a blob.

[Donald Trump]

Rachael Blakelys word for same

[Sonia]

basically means you said it in Italian.
(past participle of dire which means to say)

a term of complete agreement.

when written, is the [ditto sign], indicating to repeat what precedes it.

[Sonia]

Ditto was [the bestest] [pokemon] of [dem] all!

[Cami]

The same thing again (used in lists and accounts and often indicated by a ditto mark under the word or figure to be repeated).

[Jason Yan]

Wireless screen sharing, digital signage and collaboration solution to stay connected with colleagues. A software product by Squirrels

[Mary Mallozziberg]

[Literally] anything you [want] it to [mean].