spring on
US /sprɪŋ ɑːn/
UK /sprɪŋ ɑːn/

1.
tiba-tiba menyajikan, memberitahukan secara mendadak
to suddenly present something to someone, especially in a surprising or unexpected way
:
•
Don't spring that question on me now; I need time to think.
Jangan tiba-tiba menanyakan pertanyaan itu padaku sekarang; aku butuh waktu untuk berpikir.
•
They decided to spring the news on him at the party.
Mereka memutuskan untuk memberitahukan berita itu padanya di pesta.