look up any word, like half chub:
 
2.
catching catfish (usually flathead catfish) by use of bare hands only- legal in only four states

see also noodling
We are going grabbling down in Tennessee this weekend; gonna get us some dinner.
by Chester NoSeeds January 21, 2006
 
1.
Digitally stimulating female genitalia AKA fingering.
Finally! Man, look how buff my left arm looks just from grabbling you.
by Sapient6000 August 19, 2013