Trout Baby Share definition Flag Trout Baby is a joint or a rolled cigarette that has a hump in the middle. It looks like its 5 months pregnant with an FAS baby. Yesterday I rolled a nice Trout Baby with PCP in it. I gave the Troutbaby to a 5 year old. Trout Baby by Ginkfist July 18, 2006 0 0 Get merch Get the Trout Baby mug. Buy Now — $32.95 See more merch