At weekends.

Saturday and Sunday

(slang) A period of several days in which one indulges in activities such as binge drinking, drug-taking and sex.

plural of weekend warrior

(colloquial) A weekend break for a couple, without their children, giving them the opportunity to have sex.

plural of weekender bag

A bag with the properties needed for a weekend trip, thus containing a volume typically larger than that of backpack and the patterning of a suitcase but shape closer to a sports bag.

(euphemistic) A condom.

A part-time soldier, or reservist / (idiomatic) A person who indulges in a sport or pastime on an infrequent basis, usually on weekends when work commitments are not present.

A weekend extended by one or more days off falling on a day or days immediately preceding or following it.