A commonly used filler word, to make up for the gaps in conversation. Tends to annoy the shit out of people for its overuse, and indicates that the user doesn't have the slightest clue what they're talking about.

When you eat dirt for the first time and leave your family to build a shack in the woods

"Er" is used by all southside Dublin youths, who have stolen its regular use from St.Michael's College students who coined it in around 1983. Brought forward through the generations by the ever present Dr. David Wilson. It is an insult enhancer, to give it a bit more pop. It can also be used as an insult in itself. The most common definition for it is "gay" as the teacher who used it was a batty boy and said "Hell-er/Goodbye-er"...you had to be there really

ER stands for Eye Roll

Usually meant for when someone does something so stupid that u can't physically eye roll (because you are focused on their stupidity) so u have to say it outloud.

a space-filling meaningless word, synonym for um

a response that what someone else said was dubious in some way.

1: Medical acronym for the Emergency Room, where time sensitive emergencies, as well as walk in cases, are handeled. ER doctors pride themselves on possesing a wide base of knowledge to assist in diagnosing and stabalizing patients in a wide variety of situations.

2: An ABC show that was far more popular in the mid 90's, although it still commands a fairly large audience. Since it's a TV show the situations are often somewhat far fetched.

3: A semi-word in the english language stereotypically uttered when the speaker can't think of anything better to say.

The Sri Lankan battle cry! Also can be used to say hello.