British saying (typically used in the building trade) for taking a moment to consider how a task should be approached.
Hmmm... I'm not sure how I should install this roof, I think I'm going to have to give it a good coat of thinking about.
The day after getting a dick pick looking at it atleast 2-3 times (or more) in one day
Jenny: what happened with that guy last night
Stacey: well after I left the club he sent me a dick pick and I've been "d-thinking" all day
Jenny: oh that good huh?