to fool around: to waste time (also: to screw around); to joke, not to be serious
– The problem doesn’t seem to be that participants are bored and fooling around.
– I’ve been fooling around with the 5mx and find it a generally agreeable machine.
to stay up: to remain awake, not to go to bed Examples of TO STAY UP She tried to stay up to watch the Tigers earlier this week, but she fell asleep. We’d stay up all night and then wake up and go to some diner and eat fried food.
on time: exactly at the correct time, punctually Examples of ON TIME Melissa is such a good student; she always hands in all her papers on time. I accelerated down the road, hoping to be on time for the play.
to get lost: to become lost; to go away in order not to bother Examples of TO GET LOST It turned out to be an even better thing as I got lost on my way to the airport. So I told him to get lost, and that we could raise the baby separately.
stands to reason: to be clear and logical Examples of TO BREAK OUT The bandit looked in vain for the opportunity to break out of jail. The big conference broke out into small groups.
to look at: give one’s attention to; to watch Examples of LOOK AT “Roll up your sleeve,” the doctor said. “I’ll need to look at your arm.” I went to the museum to look at the Max Ernst exhibit.
to take a trip: to go on a journey, to travel Examples of TAKE A TRIP Never having been there before, he decided on a whim to take a trip to New Orleans. When Steven lost his job, he wasn’t able to take a trip because he didn’t have the money.