A tricky sex act whereby a blow job receiver, after copping a saltyload of man love, and prior to swallowing, withdraws the member slowly from their mouth creating a white hanging stream of 'nut goo' between the bottom lip and the 'eye of the storm' resembling a hammock. Those with additional prowess, and controlled suction, can perform the 'retractable hammock' which involved sucking in the spanned length of the hammock at such a speed that it doesn't hit the chin, almost an impossibility.
"Dude you're such a fag, you love giving a salty hammock"
"holy shit man, I met this chick last night and she totally gave me a salty hammock...."