FISHING :

IDIOM: hooked on something
fishing

MEANING 1: to be caught on something
SENTENCE 1: The fish is hooked on my new lure.

MEANING 2: to be addicted to something
SENTENCE 2: The heroin addict is hooked on heroin.

DERIVATION: The derivation of this idiom is the sport of fishing. However, this idiom now is used more in the context of being addicted to something, primarily drugs.

IDIOM: off the hook
fishing

MEANING 1: to remove a fish from a hook

SENTENCE 1: The fly fisherman took the german brown trout off the hook in the "no-kill" area of the stream.

MEANING 2: to take away someone's responsibility for something
SENTENCE 2: Please let me off the hook for our dinner engagement. I have to work that evening.

IDIOM: open a can of worms
fishing

MEANING 1: to open worms for bait for fishing

SENTENCE 1: Please open a can of worms for me.

MEANING 2: to do something that will uncover a number of problems
SENTENCE 2: The Watergate scandal opened a can of worms for the Republican Party.

IDIOM: hit bottom
fishing, canoeing and boating

MEANING 1: to hit the bottom of a lake with a boat, a canoe or a fishing line
SENTENCE 1: We hit the bottom of the stream and had to push the canoe into high water.

MEANING 2: to be at the lowest or worst point
SENTENCE 2: The economy hit bottom in this fiscal quarter.

IDIOM: fish or cut bait
fishing

MEANING 1: to decide whether to fish or not
SENTENCE 1: If you don't want to fish, you can cut your bait off the hook.

MEANING 2: to decide whether to do something, usually a job, or let someone else do it
SENTENCE 2: If you don't want that job, fish and cut bait. Lois can do it.

IDIOM: swallow something, take something hook, line and sinker
fishing

MEANING 1: The fish took part of the line, the sinker (weights) and the hook in his mouth.
SENTENCE 1: The golden trout took the fly hook, line and sinker. (This practically never happens.)

MEANING 2: to believe someone completely
SENTENCE 2: He told me he loved me and I believed him, hook, line and sinker.

IDIOM: hit a snag
fishing, canoeing, boating

MEANING 1: to entangle a boat, raft or fishing line in something,such as a part of a tree, a plant, in the bottom of a stream or lake.
SENTENCE 1: My fishing line has hit a snag at the bottom of a stream.

MEANING 2: to be temporarily stopped
SENTENCE 2: We've hit a snag in the arms accord talks.

IDIOM: give someone a line
fishing, canoeing, boating

MEANING 1: to give a fish a line in order to catch it; to give someone a line/rope in order to pull them in.
SENTENCE 1: I hope to catch a nice German Brown with this line, hook, bait, and sinker.. Throw out a line to that boat, so they can dock at the pier.

MEANING 2: to tell someone something favorable so they become interested in you; usually the person watnts a date
SENTENCE 2: That line you gave Amy, that you had never been in love before you met her, is not true.