1. A gate for shutting out, admitting, or releasing a body of water; sluice
2. Something serving to restrain an outburst

ETYM Old Fren. escluse, French écluse, Late Lat. exclusa, sclusa, from Latin excludere, exclusum, to shut out: cf. Dutch sluis sluice, from the Old French. Related to Exclude.
Carries a rapid flow of water controlled by a sluicegate; SYN. sluiceway, penstock.

(Slang) Exhausted; very tired.
1. Covered with or as if with a bushy growth
2. chiefly Australian; lost especially in the bush; perplexed, confused
3. Tired, exhausted

1. Worn-out, exhausted
2. Wacky
3. Stoned

1. Dulled by surfeit.
2. Exhausted; SYN. wearied.

Witty remark; SYN. crack, sally, quip.