mentally masturbate 

When one is confused and spends more time then necessary mulling over the multitude of variables that come into play when making decisions.
Much like self pleasuring, the vast amount of thoughts that pertain to the situation in which you are trying to make the decision flood or overwhelm your thought process/senses thereby causing you to become consumed with nonsensical thoughts that end up wasting yours and others time.

When Joe finally caught up with the rest of the gang they wondered what had taken him so long,

he replied 'I had to listen to Amy mentally masturbate over which iphone cover to buy'

mentally masturbate by Chilcotin Buddha January 7, 2014

Mentally masturbating

the act of pleasuring oneself by using only the mind to concentrate on something stimulating.

No one would every know that during the meeting Brandon was mentally masturbating because he wasn't using his hands to touch his penis.

Mentally masturbating by Lateesha223 July 15, 2014

Mentally Masturbating

Adjective: A state a mind where you seem aloof but brain function is occurring.

Just so you don't think I was mentally masturbating all day here is that excel spreadsheet you requested.

Mentally Masturbating by patmyballs July 10, 2009