highlighting 

To make notes

These articles are so long, but thank goodness she's highlighting them for us!

highlighting by UBdictionaryy September 8, 2014

highlithing 

teh olde form of highlighting.

as in: why are thou highlithing us?

highlithing by hodi June 12, 2005

Highlightenment 

The experience of being enlightened while high.

After smoking a bowl, I experienced highlightenment when I was told that the Tostitos logo was really two people eating chips

Highlightenment by restinyd May 9, 2014