??Day 135：How to work with a workaholic colleague?

put in overtime is put excessive time on work which you're not supposed to do

jockey to do sth./for sth.

If you?say?that someone?is jockeying?for?something, you?mean?that they are using whatever?methods?they can in order to?get?it or do it before their?competitors?can get it or do it.