```python
def encrypt(s):
    """Create a function encrypt that takes a string as an argument and
    returns a string encrypted with the alphabet being rotated. 
    The alphabet should be rotated in a manner such that the letters 
    shift down by two multiplied to two places.
    For example:
    encrypt('hi') returns 'lm'
    encrypt('asdfghjkl') returns 'ewhjklnop'
    encrypt('gf') returns 'kj'
    encrypt('et') returns 'ix'
    """
    # "shift down by two multiplied to two places" means shift by 2 * 2 = 4
    result = []
    for char in s:
        if char.isalpha():
            # Determine if uppercase or lowercase
            if char.islower():
                base = ord('a')
            else:
                base = ord('A')
            # Shift by 4 positions
            shifted = (ord(char) - base + 4) % 26
            result.append(chr(base + shifted))
        else:
            result.append(char)
    return ''.join(result)
```