plain sailing, bumper profits/ payouts

'It will not be plain sailing but we are prepared for the days ahead'
In his first speech since the referendum result George Osborne sets out three main challenges Britain now faces. 
1 of 3 - to address the 'volatility in financial markets'

Financial Times

It wasn't all bad news in the finance world yesterday.

Hedge funds win big from Brexit bets

Hedge funds that bet that Britain would leave the EU were rewarded with bumper payouts after stock markets fell sharply on the back of the Brexit decision. A heavy fall for UK and European stocks on Friday led to gains for…

ON.FT.COM

plain sailing

NOUN

[MASS NOUN, OFTEN WITH NEGATIVE]

Smooth and easy progress in a process or activity:team-building was not all plain sailing

More example sentencesSynonyms

Origin

Mid 18th century: probably a popular use of plane sailing, denoting the practice of determining a ship's position on the theory that it is moving on a plane.

bumper (BIG)
adjective [before noun]
unusually large in amount:
Farmers have reported a bumper crop this year.
everyone in the business predicts a bumper year

bumper.
1. A drinking vessel filled to the brim.
2. Something extraordinarily large.

adj.
Extraordinarily abundant or full: a bumper crop of corn.
bumper crop [harvest]　大豊作.

All eyes may be on Google Inc.'s YouTube these days, but bumper profits expected from Postini, Google's latest acquisition, ...




━━ n., a. 突当る（人，物）; 〔米〕 緩衝器, バンパー; 満杯; 〔話〕 大入満員（の）; 豊作（の）, 大漁の, 大当り（の）. bumper car　＝dodgem.

bumper sticker　バンパーステッカー ((車のバンパーに張る政治的スローガンなどを印刷した張り紙)).

bumper-to-bumper　a., ad. （車が）数珠つなぎの［で］.