Grasp at - Idioms by The Free Dictionary
grasp at someone or something
to try to seize someone or something. He grasped at the bar and held on tight. The beggar grasped at the pedestrian and lost his grip.
To have a hold on something or take hold of something with the hands: Afraid of the steep drop-off, I grasped at the railing.
References in periodicals archive
If we can keep them in school and playing a sport, they'll have something to grasp at.
Prime recruits for gangs are kids with nothing positive to grasp at.
Apparently, this was the first attempt to break up text into phrases that contained a complete idea that people could grasp at