〈努力する〉 exert [strain] oneself; make an effort 《to do》
〈はずむ, おごる〉 give 《a generous tip》; treat oneself to something; 《口語》 splurge on 《an expensive meal》; 《英口語》 lash out on 《a new dress》
splurge on [【形式ばった表現】 allow oneself an extravagance and buy] a sports car.
読み方 きばる
(=張り込む)to strain one's generosity; to dive into one's pocket; to come down handsomely; to invest in (some article); to treat oneself to (some extravagance); to give (so much)