muck in
Verb
Meaning
muck in (third-person singular simple present mucks in, present participle mucking in, simple past and past participle mucked in)
(informal) To join in with work.
If we all muck in, we can get this room cleaned in next to no time.
Examples
Both Plockton and the Isle of Muck in north-west Scotland are incredibly beautiful. Sadly, Plockton has been discovered by tourists because it's where they shot Hamish Macbeth.
I like to look glamorous sometimes, but it's not the be all and end all. I can muck in as well.