1) Beginning to melt 2) Like a mud puddle 3) Like half-melted snow 4) Like liquid splashing 5) Like melting snow puddles 6) Like mud puddles 7) Like partly melted snow 8) Like sots, often 9) Like wading areas 10) Prone to spilling 11) Spill-prone 12) Splashy 13) Threatening to spill 14) Wet and messy 
• See Slush, Slushy.
Sloshy is slang for emotional, sentimental.