SB 6.2.14

sāṅketyaṁ pārihāsyaṁ vā
 stobhaṁ helanam eva vā
vaikuṇṭha-nāma-grahaṇam
 aśeṣāgha-haraṁ viduḥ
Synonyms: 
sāṅketyam — as an assignation; pārihāsyam — jokingly; — or; stobham — as musical entertainment; helanam — neglectfully; eva — certainly; — or; vaikuṇṭha — of the Lord; nāma-grahaṇam — chanting the holy name; aśeṣa — unlimited; agha-haram — neutralizing the effect of sinful life; viduḥ — advanced transcendentalists know.
Translation: 
One who chants the holy name of the Lord is immediately freed from the reactions of unlimited sins, even if he chants indirectly [to indicate something else], jokingly, for musical entertainment, or even neglectfully. This is accepted by all the learned scholars of the scriptures.