There were many words used in LITB that were indicative of the times. In the 70's we used "groovy" "far out" and "right on."

Here are some of the words used during Beaver's days. Add to the list if you remember.

crummy, creep(y), clobbered, jerk, rat, hunk a..., jalopy, heap, a dope, wiseguy, gee, golly, gosh, square, squirt, squeal(ed)

The business, flip, flaky, mushy stuff.

Swinger, operator, almost anything eddie says in season six. space age,

I think season six was making a real effort to be less mayfield innocent and more "in the world" teenager show.

Neat (as in "he's a real neat guy").

And they also used "kind of" and "sort of" a lot - these are common to all time periods, but Beaver and his friends and Wally usually used these terms in a weak attempt to bolster their position with their elders, for example: "...well, I kind of did my homework".

Gyp, brush-off, off his rocker, holler

I just heard these today:
rat-fink, goon, kook, junk, zombie

Wally always says "stuff and junk."

Don't forget "On accounta". I always chuckle when I hear them say that.

creepy, squirt, wise-guy, "the business" neat, cut it out and gee are the LITB words that most come to mind. (I actually still use some of them)

Ape, as in "Gee, Beav, I wouldn't tell Dad that now. He might go ape and clobber ya!"

haha, yea... and dig eachother... they say marks instead of grades... oh gee, oh golly... so many :)

More quotes:

"Getting the business"

"Going Ape"

"Ascared": (A combination of being afraid and scared! hahaha)

"Hunk"

"Junk"

"kinda", "Sorta" and "Kindasorta!"

"Blow His Top"

"Hollorin"

"Clobber"

Jack

haha, yea... and dig eachother... they say marks instead of grades... oh gee, oh golly... so many :)

I think using the word "marks" instead of "grades" might be more of a regional thing. When I was growing up way back then we always used the word "grades", but when I went away to college, people from other parts of the county (the East?) used the word "marks". Kind of like "soda" vs. "pop".

or how us wisconsin-ites say bubbler and everyone else says drinking fountain

When Eddie calls a guy by a girl's name. Like, "Hey Gertrude!"