With hands that move very quickly. / Highly efficient at improvisation. / Sexually aggressive. / (obsolete) Greedy, miserly.

(marketing) One who is not an early adopter but begins using a product or service shortly after its introduction.

plural of fast follower

Moving rapidly / Of or relating to a situation in which events follow each other in quick succession / (of a product) That is sold quickly

(nonstandard) Alternative form of breakfast (“meal eaten after fasting”)

(nonstandard) Alternative form of breakfast (“meal eaten after fasting”)

saliva produced first thing in the morning, before breakfast, once believed to be useful in treating diseases

taking effect quickly

plural of fast-talker

A fast talker; someone who habitually talks fast. / A person whose job responsibilities include talking very fast, for example an auctioneer.