When you painstakingly take time out of your day to try and use your vast professional and academic expertise to educate people about a complex topic but they just don't listen.
To completely fuck something up, beyond recognition, usually multiple times, often in a dangerous way, but it has been know do describe any mistake made in an engineering work place.
Used mainly in engineering fields, often followed by 'cheers then' is commonly used in the UK and Europe
Believed to have originated from Rolls-Royce
Person A: ‘I think I’ve done it, again, its on the piss’
Person B: ‘what? Really?!’
Person A: ‘yea it’s my seventh! I just keep doing a dunsford!’
Person B: ‘at least it’s not as bad as last time, you nearly lost an eye’
Person A: ’yea I am such a dunsford’
a beastly nick name, usually given to kids named Daniel and or Dan. Danfords are always up to something fun, have hot girlfriends and give the best sex.