A sex position involving at least two men but three people all together. Similar to "Eiffel Tower" but upside down, one person is performing fellatio on one man and participating in coitus with another, but is facing upwards with their back to the ground while held between two men. Thus a hammock is formed as the person in the middle swings like a hammock between the two men.
It is quite popular in Scotland.
dude 1: hey dude, what did you do last night?
dude 2: nothing much, i just Scottish Hammocked last night and it was a-MAZE-ing!