To stay on a topic too long and in too much detail.
The autistic child would dwelve on the train schedules for years.
by Icyhot January 25, 2008
The experience of simultaneously deep delving and grounded dwelling.
"(This) eclectic weblog is geared for those who creatively dwelve at the edge of life and business."
by cori.schlegel September 10, 2005