nyaams, n. — Green’s Dictionary of Slang

nyaams n.

[fig./ext. use of nyam v., i.e. one who thinks of nothing but eating; thus cf. W.I. coco-head, a fool, itself the fig. use of coco-head, the rhizome of the coco-plant]

1. (W.I.) foolishness, nonsense, esp. as an excl.

1955

cited in Cassidy & LePage Dict. Jam. Eng. (1980).

2. a fool, an oaf.

1943, 1958

cited in Cassidy & LePage Dict. Jam. Eng. (1980).

In compounds

nyaamshead (n.) [-head sfx (1)]

(W.I.) an absolute fool.

1958

cited in Cassidy & LePage Dict. Jam. Eng. (1980).