That is a man in whose ears (or in whose ear) the devil urinated.  

ذُكِرَ عِنْدَ رَسُولِ اللَّهِ ﷺ رَجُلٌ نَامَ لَيْلَةً حَتَّى أَصْبَحَ قَالَ ذَاكَ رَجُلٌ بَالَ الشَّيْطَانُ فِي أُذُنَيْهِ أَوْ قَالَ فِي أُذُنِهِ  

Don't you observe (Tahajjud) prayer? I ('Ali) said: Messenger of Allah, verily our souls are in the hands of Allah and when He wants to awaken us, He awakens us. The Messenger of Allah ﷺ went back when I said this to him. He was striking his hand on his thigh while returning, and I heard him say: Verily the man disputes with many things.  

أَنَّ النَّبِيَّ ﷺ طَرَقَهُ وَفَاطِمَةَ فَقَالَ أَلاَ تُصَلُّونَ فَقُلْتُ يَا رَسُولَ اللَّهِ إِنَّمَا أَنْفُسُنَا بِيَدِ اللَّهِ فَإِذَا شَاءَ أَنْ يَبْعَثَنَا بَعَثَنَا فَانْصَرَفَ رَسُولُ اللَّهِ ﷺ حِينَ قُلْتُ لَهُ ذَلِكَ ثُمَّ سَمِعْتُهُ وَهُوَ مُدْبِرٌ يَضْرِبُ فَخِذَهُ وَيَقُولُ وَكَانَ الإِنْسَانُ أَكْثَرَ شَىْءٍ جَدَلاً  

When any one of you goes to sleep, the devil ties three knots at the back of his neck, sealing every knot with:" You have a long night, so sleep." So if one awakes and mentions Allah, a knot will be loosened; if he performs ablution two knots are loosened; and if he prays (all) knots will be loosened, and in the morning he will be active and in good spirits; otherwise we will be in bad spirits and sluggish in the morning.  

النَّبِيَّ ﷺ يَعْقِدُ الشَّيْطَانُ عَلَى قَافِيَةِ رَأْسِ أَحَدِكُمْ ثَلاَثَ عُقَدٍ إِذَا نَامَ بِكُلِّ عُقْدَةٍ يَضْرِبُ عَلَيْكَ لَيْلاً طَوِيلاً فَإِذَا اسْتَيْقَظَ فَذَكَرَ اللَّهَ انْحَلَّتْ عُقْدَةٌ وَإِذَا تَوَضَّأَ انْحَلَّتْ عُقْدَتَانِ فَإِذَا صَلَّى انْحَلَّتِ الْعُقَدُ فَأَصْبَحَ نَشِيطًا طَيِّبَ النَّفْسِ وَإِلاَّ أَصْبَحَ خَبِيثَ النَّفْسِ كَسْلاَنَ