O

[oars] See: REST ON ONE'S OARS.

[oath] See: TAKE OATH.

[oats] See: FEEL ONE'S OATS, SOW ONE'S WILD OATS.

[obey the call of nature] See: ANSWER THE CALL OF NATURE.

[occasion] See: ON OCCASION.

[occupy oneself] {v. phr.}

To make oneself busy with.

/Having retired from business, he now occupies himself with his stamp collection./

[oddball] {n.}, {slang}, {informal}

An eccentric person; one who doesn't act like everyone else.

/John is an oddball — he never invites anyone./

[odd jobs] {n. phr.}

Work that is not steady or regular in nature; small, isolated tasks.

/Dan does odd jobs for his neighbors, barely making enough to eat./

[odds] See: BY ALL ODDS.