A better way of saying more serious, as its shorter and definitely much easier to say. It also saves room on tweets.

An achievement in Gears of War, which the description 'Kill 10000 people in ranked match total'.

It never unlocks exactly on 10000, the player is mostly required to get around 13-15k kills.

The achievement can also be unlocked by glitching it, by using another account that has seriously.

the ULTIMATE achievement of xbox 360 that consumes the mind, body, and soul and makes the user go completely insane while trying to obtain the beast.

1- to mean something with intent

2- Homestarrunners' SAying, also on bumber sticker, i really reccomend you check out the Strongbad Sings though (now has a great discount price!)

A verb -

To seriousize

Present tense:

I am seriousizing
You are seriousizing
He/She/It is seriousizing
We are seriousizing
You are seriousizing
They are seriousizing

Past Tense:

I serious'd
You serious'd
He/She/It serious'd
We serious'd
You serious'd
They serious'd

It is what you do when you need to look serious. You serious.

The trait of being too serious for your own good.

replaces random as most annoying word in the world. it does not mean you're serious, and does not effectively emphasize what you just said. instead, secures you a position at the bottom of the social ladder.