[f. prec. vb. + GUT.] The place on board, usually the hold, where the blubber of a whale, cut up in long slices, is stored before barrelling; also applied to the blubber itself.
1808. Jamieson, Flench-gut, the blubber of a whale laid out in long slices, before being put into casks.
1820. Scoresby, Acc. Arctic Reg., II. 304. When the flens-gut is filled with blubber, or when, no fish being seen, a favourable opportunity of leisure is presented, the operation of making off is generally commenced.
1867. in Smyth, Sailors Word-bk.