By guess and by gosh American noun phrase
If somebody is doing something by guess and by gosh, he or she has a huge belief in his or her fortune and does the work without any careful examination or plans.
Make sure that we have all the plans updated. I don’t want things to be made by guess and by gosh.
A dedicated employee will never complete her task by guess and by gosh.
To be thankful or grateful for one's good luck usually while avoiding a bad situation
Used to indicate that it is very easy to guess something
A normally unreliable person can still be right about something, even if it is only by accident.
It is used to say that someone is lucky.
1. Doing something extremely well
2. Behaving in an extreme or remarkable manner
1. Holly was in rare form during her speech, so she got the first prize in the competition last night.
2. Corrine: I'm going to buy Christmas presents for everybody. Do you want to go with me?
Laura: Oh...My kids are in rare form today, so I cannot go with you. Sorry!