bottom

be bumping along the bottom (of an economy or industry) be at the lowest point in its performance without improving or deteriorating further.

bottom drawer: seedrawer.

the bottom falls (or drops) out of something something fails or collapses totally.

the bottom line: seeline.

bottoms up! used to express friendly feelings towards your companions before drinking. informal

☞ The expression refers to the raising of a glass towards the horizontal.

from the bottom of your heart: seeheart.

from top to bottom: seetop.

get to the bottom of find an explanation for (a mystery).

rock bottom: seerock.

scrape the bottom of the barrel: seescrape.

touch bottom: seetouch.

you can bet your bottom dollar: see you can bet your boots atbet.