Pitch in
Meaning: to join in and help someone with something, to help a group of people to do some work that needs to be done
Example: If we all pitch in, we'll get this kitchen cleaned up in no time. Would you please pitch in and help with the party? Come on! Pitch in!
Example: If we all pitch in, we'll get this kitchen cleaned up in no time. Would you please pitch in and help with the party? Come on! Pitch in!
