Green’s Dictionary of Slang

jumpover n.

[one ‘jumps over’ the counter and ransacks the cash register]

(Irish und.) the robbery of a small shop, petrol station, etc.

[Ire]P. Howard The Joy (2015) [ebook] ‘Are ye doing a job?’ I ask him. He just nods his head. [...] ‘What are ye doin?’ ‘A jumpover. A newsagent’s shop’.