1lap 
/ˈlæp/ noun
plural laps /ˈlæp/ noun [count] : the area between the knees and the hips of a person who is sitting down
▪ A child was sitting on his lap. ▪ She held the baby in/on her lap. ▪ He kept his hands in/on his lap. ▪ The students rested the books in/on their laps.
▪ A child was sitting on his lap. ▪ She held the baby in/on her lap. ▪ He kept his hands in/on his lap. ▪ The students rested the books in/on their laps.
drop/fall into your lap or land in your lap
informal ◊If something good drops/falls into your lap or lands in your lap, it comes to you suddenly in an unexpected way even though you did not try to get it.
▪ This wonderful new job just fell into my lap when I was least expecting it!
▪ This wonderful new job just fell into my lap when I was least expecting it!
drop/dump (something) in/into/on your lap
informal ◊If something is dropped/dumped in/into/on your lap, it is given to you suddenly even though you did not want it or expect it.
▪ Another major problem was dumped into her lap.
▪ Another major problem was dumped into her lap.
in the lap of luxury
: in a situation of great ease, comfort, and wealth
▪ She was reared in the lap of luxury.
▪ She was reared in the lap of luxury.
in the lap of the gods
chiefly Brit : not yet decided or certain
▪ The election is too close to call: the result is in the lap of the gods.
▪ The election is too close to call: the result is in the lap of the gods.
— compare 3lap
