wrap one's head around
- to understand something
Wiktionary
verb
- To come to a good understanding of.
“It is sometimes mind-boggling to try and wrap one's head around all the possible information sets which one should try to address.”
““I know how important it is to vote, but I couldn’t wrap my head around the options at that point,” Ms. Dibble said of the 2016 election.”
- To crash into (something, especially a pole) messily and fatally while travelling in a motor vehicle.
““Some crazy young bastard wrapped his head around a pole.””
- Used other than figuratively or idiomatically: see wrap, head, around.
“The words barely left the lips when there came a loud cry and a trample of hoof beats. It was Kelly, radiant and shining, her mane was whipping with her speed. I cried out to her and the mare came to a stop and wrapped her head around mine.”