1)You can fill a gap in your life - fill the void in your life with something that's missing from your life (adopt a child when you can't have one and you really want one, find yourself a girlfriend because you've been missing having one for the longest time, find yourself a dream job that will make you feel complete).Originally Posted by zoobinshid
2)Is there something the matter?- is something wrong?
3.The means justify the end - the slogan goes the other way round : The end justifies the means: morally wrong actions are justifiable as long as you reach the goal, no matter how evil the actions, it's OK as long as you accomplish what you want.
4) It`s no go - it's a no to "go ahead", can't proceed, not allowed to do it.
5)Don' t stand on ceremony -don't behave in an overly formal fashion.
6)He is on both side of the law - someone representing the law ( law inforcement folks- a cop for instance) who is also involved in illegal activities.