The Sign that 'Twerbled'...
Somewhere up past 24th Street on the Drag as some sort of big roadside sign, on the west side of the road, and somehow I think there may have been a pizza place nearby? Anyway, this sign was held by a massive steel 'H' beam, big enough to back into and almost be completely hidden.
And someone, probably many of us, discovered what an amazing sound it made if you backed up into that way, then kicked backward with your heel! It must have been something to do with the height and size and harmonics or who knows what - but everyone agreed that the correct description of the sound it made was "twerbling"...
I'm sure it must have driven the local shops mad, with loud and rowdy groups of drugged out hippies, walking up to the sign at all hours of the day and night, kicking it and laughing...
Update! Zanthan was there...

