The male genitalia (
penis) when in contact by any means of the female genitalia (vagina).
'Tabby wacker': 'wacker' perhaps meaning the '
penis', and 'tabby' an alternative word for 'vagina' and perhaps from 'pussy(cat/tabby cat)' (?)
I had never heard of this before. Apparently, and quoting an internet forum user, "The
Bard (Scottish poet Robert Burns) used the phrase regularly". Is it then a Scottish term?
I
don'
t think Robert Burns used it in his poetry, but I could be wrong.
The poster I spotted using it on an internet forum wrote it as one whole word. I happen to think it is two
words, largely to take account of the male and female genitalia separately. It could perhaps be hyphenated (?)