Wiktionary
jump at
vb. (context idiomatic English) To accept something enthusiastically. Usually an opportunity, or chance, or job etc.
Usage examples of "jump at".
Things are thorny enough already without suggesting to the Zanzibarans that we believe they're incompetents or cowards who jump at shadows.
Which means that when you offer him the rest of the terms Admiral Lantu's suggested they'll seem so much better than his expectations he'll jump at them.
He caught her slight jump at the Lebur's moves and smiled slightly, hoping that the smile would not be seen as offense.
Back up a couple of hops, take a running jump at it and as you jump, tell your suit to jump.