the act of getting a fucked up sex change that goes completely wrong, and you end up with a twat and a testicular gland so you now have a vagina and a cumming magazine but no glue gun.
That islamic guy has a twastical hanging from his pants of and you can just see the camel toe has a testicle shape to it while he sings Numa Numa song
The word: " Twastard" is a noun and an amalgam of the words: "Twat" and "Bastard." Basically calling a person both insults at once making it a serious swear word and a double revilement. Generally used against males rather than females