Both tramadol and hydrocodone attach to receptors in your brain to change your perception of pain. However, tramadol also allows the chemical messengers norepinephrine and serotonin to remain available to your brain for a longer period. It is believed that this helps block pain signals in your spinal cord.
In cinematography, the Dutch angle is one of many cinematic techniques often used to portray psychological uneasiness or tension in the subject being filmed.
Dutch concert, in which each musician plays a different tune; and Dutch uncle, someone who criticises or rebukes you with the frankness of a relative. However, a Dutch auction is strictly not a member of this set, since it refers to a real practice, still used today for example in the Netherlands to sell flowers and other produce. Instead of starting low and going higher, the auction starts with a high price and reduces it.