throw over

present singular third person throws over · participle present throwing over · past threw over · participle past thrown over

1. transitiveTo discard or give up (a plan or project, etc.).First known use 19th c.

   I failed to strike anything of any benefit at all, and I became entirely disgusted and threw the whole thing over.

   1909, Transactions of the Minnesota State Horticultural Society

   Synonyms: abandon, give up

2. transitiveTo break off relations with (a friend, romantic partner etc.).First known use 19th c.

   Look here Vita—throw over your man, and we'll go to Hampton Court and dine on the river together and walk in the garden in the moonlight[…]

   c. 1927, Virginia Woolf, The Complete Works of Virginia Woolf

   1 more example

   The girl he was engaged to at Clapton Hill tried to get it out of him, and threw him over partly because he refused, and partly because, as she said, he fairly gave her the "'ump."

   1901, H G Wells, Mr Skelmersdale in Fairyland

   Synonyms: break up with, dump