[deep water] {n.} Serious trouble or difficulty. * /When Dad tried […]

[delta wave] {n.}, {informal}, {semi-technical} A brain wave 1-3 cycles per […]

[Dennis the Menace] {n. phr.} After the notorious television character played […]

[devil of it] or [heck of it] {n. phr.} 1. The […]

[devil to pay] {n. phr.} Great trouble. - Used after "the". […]

[devil-may-care attitude] {n. phr.} An attitude of no concern for financial […]

[diamond in the rough] {n. phr.} A very smart person without […]

[dick] {n.} 1. Fellow. 2. Penis.

[dime store] or [five-and-dime] or [five-and-ten] {n. phr.} A store that […]

[dip] {n.} a pickpocket.