The state of mind a person is in when s/he is so stressed or angry that s/he might scream a scream so high that only a dog could hear it. Also to be in a state of mind where every little sound is like nails on a chalkboard. The place one finds one's self after one's last nerve has been worked. Typically plural.
"Getting cut-off on the road three times today has sent me into the higher frequencies".
by dmh August 07, 2006
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.Buy the mug