(simile) Extremely nervous.

(idiomatic) To improvise continuously.

(simile) Very secure.

plural of Asian lion

(idiomatic) Used to express reluctance, to express that if one hypothetical or possible action happened, it would not make any notable difference

(idiomatic) Used to express somewhat reluctant assent, saying that if one situation exists (or because it does exist), another event or situation that would otherwise be undesirable, difficult, impossible, etc., becomes more feasible or reasonable, or would not make a difference.

Of or pertaining to ascorbic acid or its derivatives

(mycology) A spore that is produced asexually.

(simile, colloquial) So slippery that it is almost impossible to hold. / (idiomatic, simile, colloquial) Very crafty or cunning.

(simile, Britain) Extremely good.