From Longman Dictionary of Contemporary Englishthrow somebody ↔ over phrasal verbold-fashionedRELATIONSHIP to end a romantic relationship with someone → throw→ See Verb table
Examples from the Corpus
throw over• Where else could you learn that Pound threw Robert Frost over his head in a restaurant?• Darkness threw a cloak over my strangeness, so that people let me pass with a nod or a softly called greeting.• After 10 years of torment, Kiranjit Ahluwalia, 36, threw petrol over sleeping husband Deepak and set him on fire.• The trike skidded and tumbled, throwing Grimm over the handlebars.• Fogarty led the old man outside with only one shoe, and Jack threw the rope over the limb of the maple.• You pick up the bag and throw the strap over the middle of your shoulder and walk calmly to the green.• Maybe you have to throw a coat over your nightie and pick them up from miles away in the car.• You threw a blanket over your wife and let her sleep it off. 